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A fun introduction to the world of geology through a 12-piece rock kit. Each Tech Cut specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features.
Anthracite Coal is formed in anoxic environments from compressed organic matter, and is used worldwide as fuel source.
Product Type | Metamorphic Rock, Anthracite Coal |
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Thickness | 0.332 mm |
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Specimen Size | 50.8mm dia. x 0.332 mm thick |
Description | EPI polished two sides |
Product Type | Sapphire Substrate, EPI Polished Two Sides |
Diameter (Metric) | 50.8 mm |
Product Type | Ruby Sphere |
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Diameter (Metric) | 5 mm |
Grade | Grade 25 |
Product Type | Sapphire Sphere |
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Diameter (Metric) | 4.78 mm |
Grade | Grade 25 |
Designed to match most introductory-level textbooks
A fun introduction to the world of geology through a 12-piece rock kit. Each Tech Cut specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features.
Basalt is formed quickly from an iron-rich magma and exhibits a dark color and small crystal size.
Rhyolite Specimen is aphanitic felsic rock, formed during eruptions of thick, viscous magma.
Product Type | Igneous Rock, Rhyolite |
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Product Type | Sapphire Sphere |
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Diameter (Metric) | 1.5 mm |
Grade | Grade 25 |