About: Colemanite   Sponge Permalink

An Entity of Type : dbkwik:resource/6IIoeMLPkySiK--1vpcViQ==, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Colemanite is a borate mineral found in evaporate deposits. Colemanite is a mineral formed when borax deposits occur, then usually covered with boron containing water. Then, when the water evaporates, the boron remains on the colemanite. The mix of boron and borax form mineral deposits of colemanite. It was named after William T. Coleman (1824-1893), the owner of the mine where it was found.

AttributesValues
rdf:type
rdfs:label
  • Colemanite
  • Colemanite
rdfs:comment
  • Colemanite is a borate mineral found in evaporate deposits. Colemanite is a mineral formed when borax deposits occur, then usually covered with boron containing water. Then, when the water evaporates, the boron remains on the colemanite. The mix of boron and borax form mineral deposits of colemanite. It was named after William T. Coleman (1824-1893), the owner of the mine where it was found.
  • Colemanite (CaB3O4(OH)3·H2O) is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. It was first described in 1884 for an occurrence near Furnace Creek in Death Valley and was named after William Tell Coleman (1824-1893), owner of the mine Harmony Borax Works where it was first found.
sameAs
dcterms:subject
dbkwik:ceramica/pr...iPageUsesTemplate
Category
opticalprop
  • Biaxial
mohs
  • 45(xsd:integer)
Other
  • Bright pale yellow fluorescence, may phosphoresce pale green; pyroelectric and piezoelectric at very low temperature.
Gravity
  • 242(xsd:integer)
Name
  • Colemanite
  • Colemanite
Type
  • Borate
symmetry
  • Monoclinic 2/m
dbkwik:geology/pro...iPageUsesTemplate
dbkwik:resource/7UNC5-bUvfR5Dxex-m0HXA==
  • Exfoliates on heating, produces a green flame
SG
  • 2(xsd:double)
streak
  • White
formula
  • CaB3O43·H2O
System
  • Monoclinic - Prismatic
Hard
  • 4(xsd:double)
strunz
  • 6(xsd:integer)
Color
  • Colorless, white, yellowish, grey
fusibility
  • 15(xsd:integer)
RM
  • Mineral
unit cell
  • a = 8.712 Å, b = 11.247 Å, c = 6.091 Å; β = 110.12°; Z = 4
cleavage
  • [010] perfect, [001] distinct
habit
  • Massive granular to coarsely crystalline, most commonly nodular.
Pro
  • Koal-mahn-ight
diaphaneity
  • Transparent to translucent
fracture
  • Brittle uneven to subconchoidal
refractive
  • nα = 1.586 nβ = 1.592 nγ = 1.614
luster
  • Vitreous
birefringence
  • δ = 0.028
abstract
  • Colemanite is a borate mineral found in evaporate deposits. Colemanite is a mineral formed when borax deposits occur, then usually covered with boron containing water. Then, when the water evaporates, the boron remains on the colemanite. The mix of boron and borax form mineral deposits of colemanite. It was named after William T. Coleman (1824-1893), the owner of the mine where it was found.
  • Colemanite (CaB3O4(OH)3·H2O) is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. It was first described in 1884 for an occurrence near Furnace Creek in Death Valley and was named after William Tell Coleman (1824-1893), owner of the mine Harmony Borax Works where it was first found.
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