- C****iterite is a tin
oxide mineral, SnO2. It is
generally opaque, but it is
translucent in thin crystals. Its
luster and
multiple crystal faces produce...
- Selenite,
satin spar,
desert rose, and
gypsum flower are
crystal habit varieties of the
mineral gypsum. All
varieties of gypsum,
including selenite and...
- most
common cleavage plane).
Habits include acute to
obtuse rhombohedra,
tabular habits, prisms, or
various scalenohedra.
Calcite exhibits several twinning...
- have been used for baryte,
including barytine, barytite, barytes,
heavy spar, tiff, and
blanc fixe.
Baryte occurs in many
depositional environments, and...
- reddish-white, brownish-white;
colourless in
transmitted light Crystal habit Tabular crystals,
often with
curved faces, also columnar, stalactitic, granular...
-
habit Can be
anhedral or euhedral.
Grains are
commonly elongate with a
tabular appearance.
Twinning Typically displays Carlsbad twinning.
Baveno and manebach...
- cerussite, is due to W.
Haidinger (1845). Miners'
names in
early use were lead-
spar and white-lead-ore.
Cerussite crystallizes in the
orthorhombic crystal system...
-
orthorhombic to
triclinic in a
single crystal.
Crystals are
typically thin
tabular,
flattened parallel to the
dominant cleavage and
elongated along the a...
- Gr****
words χρυσός
chrysos and βήρυλλος beryllos,
meaning "a gold-white
spar".
Despite the
similarity of
their names,
chrysoberyl and
beryl are two completely...
- (mineral group)
Azurite Varieties that are not
valid species:
Adamantine spar (variety of corundum)
Agate (variety of
chalcedony and quartz) Alabaster...
