Tsepinite-Na
(Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O) · 3H2O
Tsepinite-Na is a new member of the labuntsovite-nenadkevichite recently identified on specimens collected back in 1981-1982 from the Horváath collection.
PHYSICAL CHARACTERISTICS:
Color is white.
Luster is vitreous.
Diaphaneity is opaque.
Crystal System is monoclinic; Cm.
Crystal Habits include short prismatic crystals to 4 mm.
Cleavage none.
Fracture uneven.
Hardness is 5.
Specific Gravity is approximately 2,74 g/cm3
Streak is white.
Associated Minerals include aegirine, catapleiite, natrolite, rhodochrosite
and sérandite.
Other Properties brittle.
Origin described in 2001 after Anatoliy I. Tsepin (b. 1946), Russian microprobe analyst.
CLASSIFICATION:
Dana System
# 60.1.3b.2
Strunz Classification
# VIII/E.07-30
REFERENCES:
To follow
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:
MSH
¤¤¤
PE
¤¤
AP
--
MX
--
SS
--
MC
--
HF
--
BR
--
SX
--
FR
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