Photo #85
Some local granite and another Enchi Het Albino ball python.
Granite is not popular for rock tumbler enthusiasts, it is composed of quartz and feldspars of varying compositions. Since Quartz has a mohs hardness of 7 and Feldspar can have a range of hardness from 6.0-6.5...when tumbling granite the softest feldspar will wear down faster than the other materials and it will produce a textured service which will take a mottled polish (shown below). Again this is a situation where a diamond grinding wheel would be advantageous to completely smooth the stone, not in my budget though.
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