Sturmanite
Sturmanite is a rare sulfate mineral with the chemical formula Ca6Fe3+2(SO4)2.5(B(OH)4)(OH)12 · 25 H2O. It crystallises in the tetragonal system and it has a Moh's hardness of 2.5. Sturmanite has a bright yellow to amber colour and falls in the ettringite group. It was named after Bozidar Darko Sturman (born 1937), Croatian-Canadian mineralogist and Curator Emeritus of Mineralogy, Royal Ontario Museum.
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Sturmanite
Sturmanite is a rare sulfate mineral with the chemical formula Ca6Fe3+2(SO4)2.5(B(OH)4)(OH)12 · 25 H2O. It crystallises in the tetragonal system and it has a Moh's hardness of 2.5. Sturmanite has a bright yellow to amber colour and falls in the ettringite group. It was named after Bozidar Darko Sturman (born 1937), Croatian-Canadian mineralogist and Curator Emeritus of Mineralogy, Royal Ontario Museum.
has abstract
La sturmanita és un rar minera ...... neralogista esloveno-canadenc.
@ca
La sturmanite est une espèce m ...... uvent atteindre jusqu'à 40 cm.
@fr
La sturmanite è un minerale appartenente al gruppo dell'ettringite.
@it
Sturmanit ist ein sehr selten ...... her einen schwachen Fettglanz.
@de
Sturmanita sulfato motako minerala da eta ettringita taldearen kidea da.
@eu
Sturmanite is a rare sulfate m ...... eralogy, Royal Ontario Museum.
@en
Wikipage page ID
53,240,428
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Wikipage revision ID
997,733,358
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birefringence
δ = 0.002
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caption
Distinctive sturmanite on matr ...... x 1.7 cm. Ex.Charlie Key Stock
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category
class
cleavage
Perfect {1010}
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color
Bright yellow to amber
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dana
diaphaneity
Transparent to translucent
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fluorescence
none
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formula
Ca6Fe3+22.5[B4]12 · 25 H2O
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gravity
habit
Hexagonal, pyramidal, prismatic
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imagesize
luster
Vitreous, greasy
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mohs
name
Sturmanite
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opticalprop
Uniaxial
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streak
Pale yellow, greenish yellow, brownish orange
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symmetry
P31c
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system
Trigonal
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tenacity
Brittle
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unit cell
a = 11.188 Å, c = 21.91 Å
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wikiPageUsesTemplate
subject
comment
La sturmanita és un rar minera ...... neralogista esloveno-canadenc.
@ca
La sturmanite est une espèce m ...... uvent atteindre jusqu'à 40 cm.
@fr
La sturmanite è un minerale appartenente al gruppo dell'ettringite.
@it
Sturmanit ist ein sehr selten ...... her einen schwachen Fettglanz.
@de
Sturmanita sulfato motako minerala da eta ettringita taldearen kidea da.
@eu
Sturmanite is a rare sulfate m ...... eralogy, Royal Ontario Museum.
@en
label
Sturmanit
@de
Sturmanita
@ca
Sturmanita
@eu
Sturmanite
@en
Sturmanite
@fr
Sturmanite
@it
wasDerivedFrom
isPrimaryTopicOf
name
Sturmanite
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