Bras D'Or Lake howlite locality, Iona, Victoria Co., Nova Scotia, Canadai
| Regional Level Types | |
|---|---|
| Bras D'Or Lake howlite locality | Cliff (Active) |
| Iona | Unincorporated Community |
| Victoria Co. | County |
| Nova Scotia | Province |
| Canada | Country |
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Latitude & Longitude (WGS84):
45° 56' 48'' North , 60° 49' 44'' West
Latitude & Longitude (decimal):
Type:
Cliff (Active) - last checked 2022
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Eskasoni 3 | 2,120 (2019) | 16.4km |
| Princeville | 5,571 (2010) | 41.5km |
Anhydrite cliffs outcropping on the Bras D'Or Lake, south of Iona. This small exposure produces by far the largest and finest howlite crystals in the world. Crystals are colorless, white, or brown and are about 1 cm in size, forming clusters.
The clusters are naturally eroded from the anhydrite rock by the lake water. Over the winter the snow and ice destroy all of the clusters, but new ones are exposed each year. The cliff appears to be quite precarious and as the cliff gets eroded from below, it creates large rockfalls. There is a railroad track at the top of the cliff.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Anhydrite Formula: CaSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Danburite Formula: CaB2Si2O8 References: |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ✪ Howlite Formula: Ca2B5SiO9(OH)5 Habit: Clusters of elongated prismatic crystals. Often curved. Colour: Brown, gray, white, colorless |
| ⓘ 'Limonite' Description: Microscopic pseudomorphs after pyrite(?) embedded in the anhydrite. References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 6 - Borates | |||
| ⓘ | Howlite | 6.CB.20 | Ca2B5SiO9(OH)5 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anhydrite | 7.AD.30 | CaSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Danburite | 9.FA.65 | CaB2Si2O8 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Howlite | Ca2B5SiO9(OH)5 |
| B | Boron | |
| B | ⓘ Danburite | CaB2Si2O8 |
| B | ⓘ Howlite | Ca2B5SiO9(OH)5 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Anhydrite | CaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Danburite | CaB2Si2O8 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Howlite | Ca2B5SiO9(OH)5 |
| Si | Silicon | |
| Si | ⓘ Danburite | CaB2Si2O8 |
| Si | ⓘ Howlite | Ca2B5SiO9(OH)5 |
| S | Sulfur | |
| S | ⓘ Anhydrite | CaSO4 |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | Calcium | |
| Ca | ⓘ Anhydrite | CaSO4 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Danburite | CaB2Si2O8 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Howlite | Ca2B5SiO9(OH)5 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ganderia DomainDomain
- GranderiaPassive Margin
- Magdalen basinBasin
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Bras D'Or Lake howlite locality, Iona, Victoria Co., Nova Scotia, Canada