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هارموتوم
EntityQ420903· pop 16· linked from 12 articles

هارموتوم

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Also known as cross stone

Harmotome is a mineral, one of the rarer zeolites; a hydrated barium silicate with formula: . It forms vitreous white well defined monoclinic crystals, often associated with calcite and other zeolites. It has a Mohs hardness of 4 to 5 and a specific gravity of 2.44 to 2.5.

Key facts

Mineral.name
Harmotome
Mineral.image
Harmotome-227546.jpg
Mineral.imagesize
280px
Mineral.category
Tectosilicate minerals
Mineral.group
Zeolite group, phillipsite subgroup
Mineral.IMAsymbol
Hrm
Mineral.system
Monoclinic
Mineral.class
Prismatic (2/m) (same H-M symbol)
Mineral.symmetry
P21/m
Mineral.gravity
2.44 to 2.5

via Wikipedia infobox

Wikidata facts

Named after
separation
Image
Harmotome-190503.jpg
Show 8 more facts
type locality (geology)
Sankt Andreasberg
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
9.GC.10
Commons category
Harmotome
Nickel-Strunz 9th edition (updated 2009)
9.GC.10
IMA Mineral Symbol
Hrm
chemical formula
Ba₂(Si₁₂Al₄)O₃₂·12H₂O
Strunz 8th edition (series ID, updated)
VIII/F.13
Sources (1)

via Wikidata · CC0

Gallery (2)