Advanced Search
Temescal Wash Quartz Latite Porphyry with Tin Ore
Field Collector: Esper Signius Larsen Jr.
Place Collected:Temescal Tin Mine
Object number: El 38-6
DescriptionMostly black porphyritic igneous rock with white plagioclase and lesser quartz phenocrysts (~3 mm) in a ground mass of black hornblende(?). The rock is broken into many fragments, most of the fragments are the fine-grained tin-ore vein, some fragments show the contact between the quartz latite and the tin ore vein.
In Collection(s)