- In the
field of optics,
transparency (also
called pellucidity or
diaphaneity) is the
physical property of
allowing light to p****
through the material...
-
includes its
common physical properties such as habit, hardness, lustre,
diaphaneity, colour, streak, tenacity, cleavage, fracture, system, zoning, parting...
- true
crystalline metatorbernite, with a dark
green colour,
translucent diaphaneity, and
vitreous lustre. However, more commonly, it is
formed by the dehydration...
-
rarely seen in hand samples. The
luster is
vitreous to
pearly and the
diaphaneity is
transparent to translucent. The
tenacity is brittle, and the fracture...
-
hardness 6.5–7.5
Luster vitreous to
resinous Streak White Diaphaneity Can form with any
diaphaneity,
translucent is
common Specific gravity 3.1–4.3 Polish...
- (defining mineral)
Luster Vitreous – waxy to dull when m****ive
Streak White Diaphaneity Transparent to
nearly opaque Specific gravity 2.65;
variable 2.59–2.63...
-
Luster Metallic,
glistening Streak Greenish-black to brownish-black
Diaphaneity Opaque Specific gravity 4.95–5.10
Density 4.8–5 g/cm3
Fusibility 2.5–3...
-
Cleavage None
Fracture Splintery Tenacity Brittle Mohs
scale hardness 6–7
Diaphaneity Translucent,
opaque Specific gravity 2.9–3.38
Refractive index 1.600–1...
- mineral)
Luster Vitreous to
pearly on
cleavage surfaces Streak White Diaphaneity Transparent to
translucent Specific gravity 2.71
Optical properties Uniaxial...
-
hardness 7 (lower in
impure varieties)
Luster Vitreous/gl****y
Streak White Diaphaneity Transparent to
translucent Specific gravity 2.65 constant;
variable in...
