Quartz diorite

Rock type: 
Igneous
Age: 
86 millions years
Tags: 
Quartz diorite, Dyke, evenly grained, massive texture, andesine, augite, quartz, K-spar, apatite, zircon, Cretaceous, K2
Submitted 4 years 7 months ago by rock.

Quartz Diorite Dyke. Dark gray, evenly grained rocks, massive texture. Consist: andesine up to 80%, augite up to 20%, quartz 10-12%, K-spar 0-6%. Accessory: apatite, zircon. Cretaceous. γδK2

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