Farbište, Poniky, Banská Bystrica District, Banská Bystrica Region, Slovakiai
| Regional Level Types | |
|---|---|
| Farbište | Deposit |
| Poniky | Municipality |
| Banská Bystrica District | District |
| Banská Bystrica Region | Region |
| Slovakia | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
48° 43' 59'' North , 19° 19' 0'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hrochoť,Slovakia | 1,500 (2014) | 8.6km |
| Banská Bystrica | 82,336 (2014) | 12.0km |
| Detva | 15,020 (2011) | 20.6km |
| Zvolen | 44,502 (2018) | 21.3km |
| Kováčová | 1,552 (2018) | 21.5km |
Name(s) in local language(s):
Farbište, Poniky, okres Banská Bystrica, Banskobystrický kraj, Slovenská republika
Small copper deposit with a mineralized 2 to 6 m thick impregnation zone in rhyolites and rhyolitic tuffs of the Werfen series with a well-developed oxidation zone. Rare primary ores are tennantite, chalcopyrite, bornite, and chalcocite. Classic locality of rare arsenates of copper, especially euchroite and tyrolite. Mined in the 19th century, it was re-studied by exploration work in 1959-1960. Notable new finds (especially of euchroite) were made in 2009-2012 at the outcrop of mineralized rocks; GPS data refer to this area.
Located around 4 km NE of Poniky (12 km E of Banská Bystrica).
Located around 4 km NE of Poniky (12 km E of Banská Bystrica).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
35 valid minerals. 2 erroneous literature entries.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Bariopharmacosiderite Formula: Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
| ⓘ Baryte Formula: BaSO4 References: |
| ⓘ Bornite Formula: Cu5FeS4 References: |
| ⓘ Brochantite Formula: Cu4(SO4)(OH)6 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcanthite Formula: CuSO4 · 5H2O |
| ⓘ Chalcocite Formula: Cu2S References: |
| ⓘ Chalcophyllite ? Formula: Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| ⓘ Chalcopyrite Formula: CuFeS2 References: |
| ⓘ 'Chlorite Group' |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ Clinoclase Formula: Cu3(AsO4)(OH)3 |
| ✪ Cornubite Formula: Cu5(AsO4)2(OH)4 |
| ⓘ Cornwallite Formula: Cu5(AsO4)2(OH)4 |
| ⓘ Covellite Formula: CuS References: |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O |
| ✪ Euchroite Formula: Cu2(AsO4)(OH) · 3H2O Habit: short prismatic to thick tabular Colour: emerald to leek-green |
| ⓘ Galena Formula: PbS References: |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Formula: CuFe3+(SO4)2(OH) · 4H2O |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Hematite var. Specularite Formula: Fe2O3 |
| ⓘ 'Limonite' References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Melanterite Formula: Fe2+(H2O)6(SO4) · H2O |
| ⓘ 'Melnikovite' |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Illite Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ Olivenite Formula: Cu2(AsO4)(OH) |
| ⓘ Parnauite Formula: Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| ⓘ Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O Colour: yellow Description: New EMPA analyses of pharmacosiderites from Farbište confirmed that all are Ba dominant end members. |
| ⓘ Poitevinite Formula: (Cu,Fe)SO4 · H2O |
| ⓘ 'Psilomelane' |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Strashimirite Formula: Cu8(AsO4)4(OH)4 · 5H2O |
| ⓘ Tangdanite Formula: Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| ⓘ 'Tennantite Subgroup' Formula: Cu6(Cu4C2+2)As4S12S References: |
| ⓘ Tenorite Formula: CuO |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
| ✪ Tyrolite Formula: Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| ⓘ 'Wad' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | 'Tennantite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)As4S12S |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | var. Specularite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Goethite | 4.FD.10 | Fe3+O(OH) |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Brochantite | 7.BB.25 | Cu4(SO4)(OH)6 |
| ⓘ | Poitevinite | 7.CB.05 | (Cu,Fe)SO4 · H2O |
| ⓘ | Chalcanthite | 7.CB.20 | CuSO4 · 5H2O |
| ⓘ | Melanterite | 7.CB.35 | Fe2+(H2O)6(SO4) · H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Guildite ? | 7.DC.30 | CuFe3+(SO4)2(OH) · 4H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Olivenite | 8.BB.30 | Cu2(AsO4)(OH) |
| ⓘ | Cornwallite | 8.BD.05 | Cu5(AsO4)2(OH)4 |
| ⓘ | Cornubite | 8.BD.30 | Cu5(AsO4)2(OH)4 |
| ⓘ | Clinoclase | 8.BE.20 | Cu3(AsO4)(OH)3 |
| ⓘ | Erythrite | 8.CE.40 | Co3(AsO4)2 · 8H2O |
| ⓘ | Euchroite | 8.DC.07 | Cu2(AsO4)(OH) · 3H2O |
| ⓘ | Strashimirite | 8.DC.12 | Cu8(AsO4)4(OH)4 · 5H2O |
| ⓘ | Chalcophyllite ? | 8.DF.30 | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| ⓘ | Parnauite | 8.DF.35 | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| ⓘ | Bariopharmacosiderite | 8.DK.10 | Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
| ⓘ | Pharmacosiderite ? | 8.DK.10 | KFe3+4(AsO4)3(OH)4 · 6-7H2O |
| ⓘ | Tyrolite | 8.DM.10 | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| ⓘ | Tangdanite | 8.DM.10 | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| Group 9 - Silicates | |||
| ⓘ | Muscovite var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Psilomelane' | - | |
| ⓘ | 'Wad' | - | |
| ⓘ | 'Melnikovite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Bariopharmacosiderite | Ba0.5Fe43+(AsO4)3(OH)4 · 5H2O |
| H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| H | ⓘ Chalcanthite | CuSO4 · 5H2O |
| H | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Clinoclase | Cu3(AsO4)(OH)3 |
| H | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| H | ⓘ Cornwallite | Cu5(AsO4)2(OH)4 |
| H | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| H | ⓘ Euchroite | Cu2(AsO4)(OH) · 3H2O |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Guildite | CuFe3+(SO4)2(OH) · 4H2O |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Olivenite | Cu2(AsO4)(OH) |
| H | ⓘ Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| H | ⓘ Pharmacosiderite | KFe43+(AsO4)3(OH)4 · 6-7H2O |
| H | ⓘ Poitevinite | (Cu,Fe)SO4 · H2O |
| H | ⓘ Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
| H | ⓘ Tyrolite | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| H | ⓘ Tangdanite | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Tyrolite | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| O | Oxygen | |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Bariopharmacosiderite | Ba0.5Fe43+(AsO4)3(OH)4 · 5H2O |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Chalcanthite | CuSO4 · 5H2O |
| O | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Clinoclase | Cu3(AsO4)(OH)3 |
| O | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| O | ⓘ Cornwallite | Cu5(AsO4)2(OH)4 |
| O | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| O | ⓘ Euchroite | Cu2(AsO4)(OH) · 3H2O |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Guildite | CuFe3+(SO4)2(OH) · 4H2O |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Olivenite | Cu2(AsO4)(OH) |
| O | ⓘ Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| O | ⓘ Pharmacosiderite | KFe43+(AsO4)3(OH)4 · 6-7H2O |
| O | ⓘ Poitevinite | (Cu,Fe)SO4 · H2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Tyrolite | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| O | ⓘ Hematite var. Specularite | Fe2O3 |
| O | ⓘ Tangdanite | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| Al | Aluminium | |
| Al | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Al | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcanthite | CuSO4 · 5H2O |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| S | ⓘ Covellite | CuS |
| S | ⓘ Galena | PbS |
| S | ⓘ Guildite | CuFe3+(SO4)2(OH) · 4H2O |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| S | ⓘ Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| S | ⓘ Poitevinite | (Cu,Fe)SO4 · H2O |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| S | ⓘ Tangdanite | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| K | Potassium | |
| K | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Pharmacosiderite | KFe43+(AsO4)3(OH)4 · 6-7H2O |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Tyrolite | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| Ca | ⓘ Tangdanite | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Bariopharmacosiderite | Ba0.5Fe43+(AsO4)3(OH)4 · 5H2O |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Guildite | CuFe3+(SO4)2(OH) · 4H2O |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| Fe | ⓘ Pharmacosiderite | KFe43+(AsO4)3(OH)4 · 6-7H2O |
| Fe | ⓘ Poitevinite | (Cu,Fe)SO4 · H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Hematite var. Specularite | Fe2O3 |
| Co | Cobalt | |
| Co | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcanthite | CuSO4 · 5H2O |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Clinoclase | Cu3(AsO4)(OH)3 |
| Cu | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| Cu | ⓘ Cornwallite | Cu5(AsO4)2(OH)4 |
| Cu | ⓘ Covellite | CuS |
| Cu | ⓘ Euchroite | Cu2(AsO4)(OH) · 3H2O |
| Cu | ⓘ Guildite | CuFe3+(SO4)2(OH) · 4H2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Olivenite | Cu2(AsO4)(OH) |
| Cu | ⓘ Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| Cu | ⓘ Poitevinite | (Cu,Fe)SO4 · H2O |
| Cu | ⓘ Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
| Cu | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| Cu | ⓘ Tenorite | CuO |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Cu | ⓘ Tyrolite | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| Cu | ⓘ Tangdanite | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Bariopharmacosiderite | Ba0.5Fe43+(AsO4)3(OH)4 · 5H2O |
| As | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| As | ⓘ Clinoclase | Cu3(AsO4)(OH)3 |
| As | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| As | ⓘ Cornwallite | Cu5(AsO4)2(OH)4 |
| As | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| As | ⓘ Euchroite | Cu2(AsO4)(OH) · 3H2O |
| As | ⓘ Olivenite | Cu2(AsO4)(OH) |
| As | ⓘ Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| As | ⓘ Pharmacosiderite | KFe43+(AsO4)3(OH)4 · 6-7H2O |
| As | ⓘ Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
| As | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| As | ⓘ Tyrolite | Ca2Cu9(AsO4)4(CO3)(OH)8 · 11H2O |
| As | ⓘ Tangdanite | Ca2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Ba | Barium | |
| Ba | ⓘ Bariopharmacosiderite | Ba0.5Fe43+(AsO4)3(OH)4 · 5H2O |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Farbište, Poniky, Banská Bystrica District, Banská Bystrica Region, Slovakia