File:Celestine_-_Sakoany_deposit,_Katsepy,_Mitsinjo,_Boeny,_Madagascar.jpg · Wikimedia Commons · See Wikimedia Commons
Key facts
- Category
- Sulfate minerals
- Formula
- Sr S O 4 sometimes contains minor calcium and/or barium
- Ima symbol
- Clt
- Strunz classification
- 7.AD.35
- Crystal system
- Orthorhombic
- Crystal class
- Dipyramidal (mmm) , H-M symbol : (2/m 2/m 2/m)
- Space group
- Pnma
- Unit cell
- a = 8.359 Å , b = 5.352 Å, c = 6.866 Å; Z = 4
- Color
- White, pink, pale green, pale brown, black, pale blue, reddish, greyish; colourless or lightly tinted in transmitted light
- Crystal habit
- Tabular to pyramidal crystals, also fibrous, lamellar, earthy, massive granular
- Cleavage
- Perfect on {001}, good on {210}, poor on {010}
- Fracture
- Uneven
- Tenacity
- Brittle
- Mohs scale hardness
- 3.0–3.5
- Luster
- Vitreous, pearly on cleavages
- Streak
- white
- Diaphaneity
- Transparent to translucent
- Specific gravity
- 3.95–3.97
via Wikipedia infobox
Wikidata facts
- Subclass of
- sulfate mineral
- Has part
- sulfur
- Named after
- sky
- Image
- Celestine - Sakoany deposit, Katsepy, Mitsinjo, Boeny, Madagascar.jpg
Show 11 more facts
- Mohs' hardness
- 3.25
- Commons category
- Celestine
- chemical formula
- SrSO₄
- Nickel-Strunz 9th edition (updated 2009)
- 7.AD.35
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 7.AD.35
- crystal system
- orthorhombic crystal system
- described by source
- Encyclopædia Britannica 11th edition
- type locality (geology)
- Bellwood
- streak color
- white
- IMA Mineral Symbol
- Clt
- Strunz 8th edition (series ID, updated)
- VI/A.08
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
Celestine (the IMA-accepted name) or celestite is a mineral consisting of strontium sulfate (SrSO4). The mineral is named after its occasional delicate blue color. Celestine and the carbonate mineral strontianite are the principal sources of the element strontium, commonly used in fireworks and in various metal alloys.
Etymology
Excerpted from Wikipedia’s “celestine” article, available under the CC BY-SA 4.0 licence.