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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Danalite from
Rosebery Mine, Rosebery, Rosebery district, West Coast municipality, Tasmania, Australia


08506340017364163554489.jpg
Danalite, etc.

Rosebery Mine, Rosebery, Rosebery district, West Coast municipality, Tasmania, Australia
08506340017364163554489.jpg
Danalite, etc.

Rosebery Mine, Rosebery, Rosebery district, West Coast municipality, Tasmania, Australia
03310340017272041078813.jpg
Danalite, etc.

Rosebery Mine, Rosebery, Rosebery district, West Coast municipality, Tasmania, Australia
Locality type:Mine
Classification
Species:Danalite
Formula:Be3Fe42+(SiO4)3S
Age information
Maximum recorded age:382.7 ± 1.6 Ma
Minimum recorded age:358.9 ± 0.4 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
1382.7 ± 1.6 to 358.9 ± 0.4 MaLate/Upper DevonianG409282
Chemical Analyses:
wt%
1
Mg0.10 %
Mn5.80 %
Fe10.70 %
Zn2.60 %
Si14.60 %
S4.70 %
Total:38.50 %
Empirical formulas:
1(Fe2.2Mn1.2Zn0.5)Be4Si3.1O4S1
Sample references:
1G409282
Bottrill, 2019 unpublished lab sept LJN2019-034-10
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chalcopyrite1
Schorl1
Magnetite1
Quartz1
Data
Mineral Data:Click here to view Danalite data
Locality Data:Click here to view Rosebery Mine, Rosebery, Rosebery district, West Coast municipality, Tasmania, Australia
Data Identifiers
Mindat Occurrence Record ID:292154
Long-form Identifier:1:3:292154:9
GUID (UUID V4):0
Nearest other occurrences of Danalite
10.2km (6.3 miles) ⓘMt Lindsay mine (Parsons Hood), Mt Lindsay mineral field, West Coast municipality, Tasmania, Australia
22.7km (14.1 miles) ⓘMt Ramsay mine, Mt Ramsay, Waratah district, Waratah-Wynyard municipality, Tasmania, Australia
35.8km (22.2 miles) ⓘMt Cleveland Mine, Luina, Heazlewood district, Waratah-Wynyard municipality, Tasmania, Australia
56.9km (35.3 miles) ⓘKara No. 1 Pit, Kara Mines, Hampshire mining district, Burnie City, Tasmania, Australia
References
Bottrill, Ralph S.; Baker, William. E. (2008) Geological Survey of Tasmania Bulletin - A Catalogue of the Minerals of Tasmania No. 73. Mineral Resources Tasmania. 254 pp.
 
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