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blowpipe flame. It is
monoclinic m with
space group Cc, but
crystals are
pseudotetragonal. Scolecite, like
natrolite and mesolite,
usually occurs as acicular...
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Radioactive Solubility Soluble in
acids Alters to
Dehydrates in air
Other characteristics Pseudotetragonal for
synthetic material,
Radioactive References...
-
Crystal habit Tabular crystals (often bent), also m****ive granular,
pseudotetragonal Twinning Crossed twin
lamellae observed on (001)
sections Cleavage...
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Formula m**** 483.63 g/mol
Color Yellow Crystal habit Platey crystals,
pseudotetragonal Cleavage Fair on {001} Mohs
scale hardness 3
Luster Adamantine Streak...
- of the axes are 90
degrees and one is less than 90.
Amicite is also
pseudotetragonal with a = 10.23, b = 10.43, c = 9.88, and d = 89, and
belongs to the...
-
aggregates Twinning Twinning developed on (010) and (101)
resulting in a
pseudotetragonal unit cell.
Fracture Conchoidal Tenacity Brittle Mohs
scale hardness...
- anhedral,
equant to
flattened grains, to 1.5 mm; may be in aggregates, (
pseudotetragonal)
Tenacity Brittle Mohs
scale hardness 3.5
Luster Vitreous Streak White...
- plates, composite,
flattened on {001}, with {001}, {100}, {120}, {012} (
pseudotetragonal indices), to 2.5 cm;
commonly in
subparallel lamellar aggregates. Cleavage...
-
Orthorhombic Identification Color White, gray, pink
Crystal habit Prismatic pseudotetragonal crystals; m****ive.
Twinning On [110] and [001]
Cleavage Perfect on...
-
flattened on {010}, also as
radiating fibrous clusters and spherulites,
pseudotetragonal Cleavage Distinct prismatic Mohs
scale hardness 1–2
Lustre Waxy to...
