[meteorite-list] Meteorite Picture of the Day (Belle Plaine)

From: Bernd V. Pauli <bernd.pauli_at_meteoritecentral.com>
Date: Wed, 2 Nov 2011 14:46:30 +0000
Message-ID: <DIIE.0000007600002ECE_at_10.0.100.101>

Mirko wrote:

"Wow, what a large chondrule in this Belle
 Plaine piece! How large is this chondrule?"

Truly amazing! Thanks for sharing with us!

Judging from the scale cube, I'd say: the diameter is about 16 mm
thus making it a real "macrochondrule" according to J.C.Bridges
and the late R. Hutchison:

J.C. BRIDGES et al. (1997) A survey of clasts and large chondrules
in ordinary chondrites (Meteoritics 32-3, 1997, 389):

"The macrochondrules were classified on the criteria of having diameters
 prior to sectioning of > 5 mm and the same mineral chemistry and internal
 textures as normal-sized chondrules."

Best wishes,

Bernd
Received on Wed 02 Nov 2011 10:46:30 AM PDT