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h2751 Sample# 2029A Ch14 0.5g -420+200u
Kafang underground tin mine, Gejiu Garnet from adit
brown, banded garnet skarn, no acid reaction NAR
h2752 Sample# 2029B Ch14 0.5g -420+200u
Kafang underground tin mine, Gejiu fine grained grey basalt
fine grained grey ???basalt?? very acid reactive, much CO3=
h2753 Sample# 2030A Ch14 0.5g -420+200u
Dadoushan open pit, Gejiu skarn limestone very acid reactive
fine grained grey limestone skarn with thin bands of tourmaline
h2754 Sample# 2030B Ch14 0.5g -420+200u
Dadoushan open pit, Gejiu skarn limestone very acid reactive
fine grained grey limestone skarn with thin bands of tourmaline
(lower pit lvl)
h2755 Sample# 2031 Ch14 0.5g -420+200u
Dadoushan open pit, Gejiu skarn limestone acid reactive, ACID
WASHED
massive black tourmaline
h2756 Sample# 2032A Ch14 0.5g -420+200u MAGS
Baishachong pit, Gejiu skarn at granite/limestone contact
ferruginous
vitreous dark brown/black ferruginous haem/mag, weakly magnetic,
MAG fraction/
h2757 Sample# 2032B Ch14 0.5g -420+200u MAGS
Baishachong pit, Gejiu skarn at granite/limestone contact
ferruginous
vitreous dark brown/black ferruginous haem/mag, weakly magnetic,
MAG fraction
h2760 Sample# 2032C ch14 0.5g -420+200u MAGS
magnetite skarn at granite/ls contact, Baishachong pit gejiu
black ferruginous skarn, weakly mag only, mag separates
h2761 Sample# 2032D ch14 0.5g -420+200u WEAKLY MAGS
magnetite skarn at granite/ls contact, Baishachong pit gejiu
black ferruginous skarn, weakly mag only, mag separates
h2762 Sample# 2033A ch14 0.5g -420+200u MAGS NAR
garnet magnetite skarn Baishachong pit gejiu same locn as 2032
brown/black ferruginous skarn, weakly mag only, mag separates
h2763 Sample# 2033B ch14 0.5g -420+200u NON-MAGS NAR
garnet magnetite skarn Baishachong pit gejiu same locn as 2032
brown/black ferruginous skarn, weakly mag only, NON-mag separates
h2764 Sample# 2034 ch14 0.5g -420+200u AR
Ridge east of Dali. fine grained Limestone, unaltered.
fine grained grey massive limestone
h2765 Sample# 2035 ch14 0.5g -420+200u AR
Mt Changsha, ridge west of Dali. Clean white limestone - sample
from collection
medium grained clean white limestone
h2766 Sample# 2036 ch14 0.5g -420+200u AR
Near Lufeng, China. Shallow marine carbonate
fine grained pale grey limestone outcrop AR
NAR means No Acid Reaction with 10% HCl
AR means Positive Acid Reaction with
10% HCl
2030A h2753 Dadoushan open pit, limestone with
tourmaline
5%
tourmaline grains, white fine crystalline carbonate microcrystals
1/10 grainsize, hackly fracture to grains.
2036 h2766 Lufeng No
decrepitation
grey
opaque very fine grained limestone, not crystalline, smooth
surface grains
2034 h2764 east Dali ridge
pale
grey and grey fine limestone crystalline grains, can see cleavages
albeit small crystals, granular grain surfaces, some grains
semi-translucent.
crystals < 1/20 grainsize
2033B h2763 non-mags Baishachong
adit
50%
haematite grains, 50% translucent ?qtz?? but maybe mostly
garnet? many translucent grains are "greasy" cream grains -
garnet!!
15%
qtz, 30% garnet 5% opaque white/grey, no acid reaction.
garnet uncertain - maybe epidote.
no
composite grains. Possibly andradite or epidote -
yellowish mineral with Ca.
2031 h2755 tourmaline
Dadoushan open pit
>98% tourmaline, but possible rare qtz overgrowths on some
grains
50%
black tourmaline, 50% translucent pale yellowish /
colourless. Good crystal striations on all grains
no
significant mineral contamination. No (or almost no) composite
grains
2029B h2752 supposed basalt Kafang
underground mine
Abundant pale grey grains of ?limestone? fine grained
Some fine grained tourmaline, substantial f.g.garnet NO
ferromagnesian minerals
not
recrystallized.
This
sample cannot be basalt as claimed during the mine visit.