Green, bladed aggregates .
2 inch and 3 inch and larger available.
M-10. Canada. Pale
brownish silky to glassy lustered acicular
masses. Associated with eudialyte
or syenite rock. Exhibits a pronounced lilac color
under short wave ultraviolet light.
White to gray plagioclase.
May display twinning striations.
Pieces may or may not exhibit pericline twinning
striae on adjacent cleavage face.
ALBITE var. PERISTERITE,
Canada. Excellent cleavages exhibiting a
movable wavy or silky sheen in reflected
light. Described as CHATOYANT. Albite
twinning striae common but not guaranteed
unless requested. Check.
M-20. Canada. SL
Typical platy crystal sections showing black, pitchy
luster on broken edges. Average 3 to 5 mm.
in thickness. Request pricing. on limited stock
AMAZONITE (AMAZONSTONE), see
Shows cleavage. White to light gray. (See
also montebrasite). Request pricing on limited stock.
AMETHYST, see under QUARTZ.
AMPHIBOLE, see Tremolite, Glaucophane,
Anthophyllite, Hornblende, Actinolite,
Shiny, colorless 1 to 3 mm crystals lining cavities in
M-35. California. Bautista Canyon.
Coarse crystalline aggregates/groups. Brown to pink/red.
Request price and check for availability.
Variety CHIASTOLITE. Crystals averaging 3
to 5 mm in cross section and up to 25 mm
long in chiastolite slate. The crystals show
excellent cross patterns. Some currently available. Check for availability and price. SL
M-40. California. Very
coarse crystalline (15-30 mm. cleavage
faces). light gray. showing some twinning
striae. Request price and availability. SL
Nevada. Medium grain, brownish red
crystalline masses. Occasional crystal face.,
and quartz. Check.
ANHYDRITE, M-50. Nevada.
White, medium to coarse textured masses. OUT
White to light gray masses with pyroxene.
Check price and availability.
Coarse grained alkali syenite (laurvigite)
composed of 75-90% grayish alkali feldspar
grains showing bluish chatoyance with
minor mafic minerals. Some pieces will
probably show a polished side. Check price and availability. SL
Coarse, straw colored to light brown bladed