Specimen Details
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Collection Names
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Number Of Specimens
1
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Specimen Nature
Form: Hand Specimen(s)
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Rock Name
Granodiorite
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Rock Class
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Rock Group
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Rock Description
Contact between Granodiorite and Hornfels; Harcourt Granodiorite. The granodiorite is in contact with a rock which has been called Hornfels. This hornfels has some characteristics of a porphyritic dyke, phenocrysts (1cm) of light coloured feldspar in a very fine grained very dark grey to black matrix.
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Category
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Scientific Group
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Discipline
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Collecting Areas
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Type of Item