Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Chalcedony from
Ada Tepe Au deposit, Krumovgrad Municipality, Kardzhali Province, Bulgaria


Locality type:Deposit
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Ada Tepe Au deposit, Krumovgrad Municipality, Kardzhali Province, Bulgaria
Data Identifiers
Mindat Occurrence Record ID:876869
Long-form Identifier:1:3:876869:8
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
9.0km (5.6 miles) ⓘZlatolist, Krumovgrad Municipality, Kardzhali Province, Bulgaria
10.7km (6.7 miles) ⓘSedefche deposit, Sedefche, Momchilgrad Municipality, Kardzhali Province, Bulgaria
11.7km (7.3 miles) ⓘZvezdel, Momchilgrad Municipality, Kardzhali Province, Bulgaria
12.7km (7.9 miles) ⓘDachiardite-K occurrence, Zvezdel, Momchilgrad Municipality, Kardzhali Province, Bulgaria
19.3km (12.0 miles) ⓘPotochnitsa, Krumovgrad Municipality, Kardzhali Province, Bulgaria
24.2km (15.0 miles) ⓘGruevo 'plasma' occurrence, Gruevo, Momchilgrad Municipality, Kardzhali Province, Bulgaria
25.3km (15.7 miles) ⓘRagada, Arriana, Rhodope, Eastern Macedonia and Thrace, Greece
27.1km (16.8 miles) ⓘMareshnitsa Sb occurrence, Madzharovo Municipality, Haskovo Province, Bulgaria
27.8km (17.3 miles) ⓘMadzharovo deposit, Madzharovo, Madzharovo Municipality, Haskovo Province, Bulgaria
47.2km (29.3 miles) ⓘKassiteres-Sapes area, Maroneia-Sapes, Rhodope, Eastern Macedonia and Thrace, Greece
References
Marinova, I. (2008). Morphology of electrum from Khan Krum gold deposit, Krumovgrad goldfield, Eastern Rhodope Mountain, SE Bulgaria. Geologica Macedonica, 2, 111-120.
Irina Marinova, Valentin Ganev, Rositsa Titorenkova (2014): Colloidal origin of colloform-banded textures in the Paleogene low-sulfidation Khan Krum gold deposit, SE Bulgaria. Mineralium Deposita 49, 49-74.
 
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