Calvin Johnson Mining High Grade Ore

Speakers’ Bureau Lecture Series: Calvin Johnson, “Mining High Grade Ore”

Tuesday, February 14, 4pm.

Join us for a great, in depth discussion of Gold Mining with Calvin Johnson, member of Gold Prospectors of Colorado.

Hear about Calvin’s experience in the recovery of a quartz vein that assayed at 2281.7 oz per ton containing crystalline gold wires. That equals 2.87 million dolars per ton. The gold is in sugar quartz,
which is rare on its own. Don’t miss this year’s opening lecture!

Members are free. Guests are only $5 donation.

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