Silicate Cross Section
Item: 20.1 Dimensions: 103 x 60 x 8 mm Weight: 156.2 g
This is a slice of a large silicate inclusion.
Partial/complete: Partial slice
Cube: ~15mm x 15mm x 15mm ≈ 15mm3

Bondoc

Country: Philippines
Region: Luzon, Bondoc Peninsula
Found: 1956
Group: Stony-Iron
Type: Mesosiderite
Class: MES-B4
Total known weight: 888.6kg

A specimen was received by H.H.Nininger in 1962, Met. Bull., 1962, (25), H.H.Nininger, Science, 1963, 139, p.345. Pb isotopic composition, R.R.Marshall, GCA, 1968, 32, p.1013. Metallography, B.N.Powell, GCA, 1969, 33, p.789. Silicate mineralogy, B.N.Powell, GCA, 1971, 35, p.5. Unshocked, A.V.Jain and M.E.Lipschutz, Nature, 1973, 242, (Phys. Sci.), p.26. Analysis of metal, 7.3% Ni, 15.6 ppm Ga, 48 ppm Ge, 3.8 ppm Ir, J.T.Wasson et al., GCA, 1974, 38, p.135. Noble gas and Cl-36 contents, F.Begemann et al., GCA, 1976, 40, p.353. Fission track age, 140