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Eva & David Kalat
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Mineral: HULSITE
Locality: Zlatý Kopec skarn deposit, Zlatý Kopec, Boží Dar, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Dimension (mm): 20 x 12 x 4 mm
Specimen packed in box of size 38 x 38 x 34 mm with card/label.
Description / Notes: HULSITE forms small black, sometimes radial aggregates, and has a semi-metallic luster.
- Formula:(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2
- Colour:Black with greenish, brownish, or reddish tinge
- Lustre:Vitreous, Sub-Metallic
- Hardness:3
- Specific Gravity:4.28 - 4.57
- Crystal System:Monoclinic
- Member of:Pinakiolite Group
- Name:Named in 1908 by Adolph Knopf and Waldemar T. Schaller in honor of Alfred Hulse Brooks, American (July 18, 1871 – November 22, 1924), chief geologist in Alaska for the United States Geological Survey from 1903 to 1924.
- Type Locality:Brooks Mountain, Port Clarence Mining District, Nome Census Area, Alaska, USA
- IMA Status: Approved, 'Grandfathered' (first described prior to 1959)
- 6.Borates
- Hulsite
We automatically include to every Moldavite-Tektite-Meteorite item our company authenticity card/label (Certificate of Authenticity) with our IMCA International Meteorite Collectors Association (ID #2082) and owner signature.You can check our profile here
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