Cordierite
Dimensions:2.8cm x 1.4cm x 0.8cm, 1.9cm x 1.9cm x 0.3cm, 1.9cm x 0.7cm x 0.3cm, 1.2cm x 0.6cm x 0.2cm, 0.6cm
Object number: 2020.6.694
DescriptionFive samples ranging in size, label states "from holotype crystal MDC 4985 (Lab #4051/1972)", "mineral claim 883".
Reference: 1973, Mineralogical Magazine 39, p.242.