catalogue of western australian meteorite collections

W.A.M. No. 12366, main mass and one smaller mass
One mass, total weight 54-2 kg (Un lb.).
This collection:
weighing 1:62 g (S1859 Simpson' collection). Also several smaller fragments.
Both main mass and the smaller cut slice have been polished.
Other collections: Government Chemical Laboratories, Perth, three fragments
weighing 506, 35 and 22 g; University of Western Australia, Geology
Department, one small mounted fragment; British Museum (Natural
History), London~ 4491 g; Australian MuseunT, Sydney, 143'5 g; U.S.
National Museum, Washington, 242 g.
References; H, P, S.
SIMPSON, E. S. & MURRAY, D. G ... (1932)-Miner. Mag. 23: :32-37.
NININGER, A. D. (1940)-Pop. Astr•. 48: 558.
LOVERING, J. F. (1962)-In: Researches in Meteorites, ed. by C. Moore.
New York, John Wiley. 227 p~
NININGER, A. D. (n.d.)-Contr. Soc. -Res. Meteorit., Northfield, Minn.
2: 227-.
/
Analytical details, etc. :
Ni-Fe
Olivine
,Enst~tite
Anorthite
Troilite
Chromite
%
.69
12
i43·5
1·5
0·2
") Modal analysis :
Iron_nickel ratio 15.
MgO/FeO ratio in sili~
cate fraction 8·8.
Total 100'2 S.G. = 5·0.
Analysed at Government' Chemical Laboratories,
Perth, Western Australia.
Further analysis:
46'6% + ·526 g.
metallics analysed separately over 10 mesh fraction
Fe'
87·51
Ni
5'78
Co
0·63
S 0·74
Insol. 0'75
Fe: Ni 16 : 1
95·41
Oxygen, H 2 0; etc., and
soluble silicates 4 .59
Total 100 ·00
S.G. = 5·32 for com~
plete specimen.
22