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The members of this subgroup are
cumulate, ultramafic rocks of plutonic origin, resembling terrestrial
lherzolites and harzburgites. They consist primarily of medium-grained
olivine and chromite that are poikilitically enclosed by large
orthopyroxene crystals. Minor interstitial areas of plagioclase glass (maskelynite)
occur, and clinopyroxenes with accessory oxides and phosphates are present.
The lherzolitic shergottites probably crystallized as cumulates from
residual melts in magma chambers, and they share many mineralogical and
chemical features with the basaltic shergottites. The lherzolitic
members are five finds from the ice fields of Antarctica - ALH 77005,
Yamato 793605, LEW 88516, Yamato 1075, and GRV 9927. The unique Lherzolite
ouside Antarctica is NWA 1950, the freshest of all the group.
NWA 1950 - Lherzolite
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Name:
Found:
TKW:
Type:
Comment:
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NWA 1950 - Jules Verne
Jan. and Feb. 2001, Morocco
797 g
Lherzolitic Peridotite
first Lherzolite available worldwide.
The freshest of all Lherzolite.
Thick fusion crust.
A must for any advanced collection.
see
BBC news about it !!
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NWA 1950_01
ultra thin crusted slice
top specimen
0.92gr
$2300
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NWA 1950_02
interior fragment
0.014gr
SOLD
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NWA 1950_03
superb interior fragment mostly olivine.
looks just like Chassigny !
0.246gr
$615
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NWA 1950_04
interior fragment
mostly pyroxene
0.076gr
$190
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NWA 1950_05
exterior fragment
0.046gr
SOLD $115
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NWA 1950_06
sliced fragment
0.006gr
$15 SOLD
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NWA 1950_07
interior fragment
0.010gr
SOLD $25
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NWA 1950_08
interior fragment
mostly olivine
0.022gr
SOLD
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NWA 1950_09
sliced fragment
half pyroxene half olivine, a lot to see in that sample with two
cut surfaces
0.052gr
SOLD $130
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NWA 1950_11
small slice
0.040gr
$100
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NWA 1950_12
slice
half pyroxene half olivinevery nice specimen
0.080gr
SOLD $200
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