scapolite

Also known as scapolite solid solution series

The scapolites (, "rod", and , "stone") are a group of rock-forming silicate minerals composed of aluminium, calcium, and sodium silicate with chlorine, carbonate and sulfate. The two endmembers are meionite () and marialite (). Silvialite is also a recognized member of the group.

Key facts

Mineral.name: Scapolite group
Mineral.image: Scapolite, elbaïte, cleavelandite 7100.1.2830.jpg
Mineral.imagesize: 260px
Mineral.category: Tectosilicate minerals
Mineral.group: Scapolite group
Mineral.IMAsymbol: Scp
Mineral.color: Pink, red, blue, brown, white, grey, colourless, green, yellow, orange, purple
Mineral.system: Tetragonal
Mineral.cleavage: Good, in 2 directions
Mineral.fracture: Conchoidal, uneven, brittle
Mineral.mohs: 5.5–6
Mineral.luster: Vitreous
Mineral.streak: White
Mineral.diaphaneity: Opaque to transparent
Mineral.gravity: 2.6–2.74
Mineral.opticalprop: Uniaxial (–)
Mineral.refractive: nω = 1.555–1.594nε = 1.526–1.565
Mineral.birefringence: 0.004–0.038

via Wikipedia infobox

Wikidata facts

Image: Skapolit,1 Benono, Madagaskar.jpg

Show 4 more facts

Commons category: Scapolite
Mohs' hardness: 5.8
density: 2.655
IMA Mineral Symbol: Scp

Sources (2)

via Wikidata · CC0

~9 min read

Article

7 sections

Contents

Properties
Scapolite bearing rocks
Limestones and contact metamorphic rocks
Mafic igneous rocks
Scapolite-hornblende rocks
Metamorphic rocks of gneissose character
References

==Properties== thumb|left|Fluorescence of an intermediate member of the group thumb|upright|Marialite, a component of scapolite, from [[Tanzania at the National Museum of Natural History]]