Mineral & Gem Society of Castro Valley
(510) 887-9007
info@mgscv.org
Meeting Address
Church of Christ
22307 Montgomery St
Hayward, CA 94541
22307 Montgomery St
Hayward, CA 94541
Mailing Address
P.O. Box 2145
Castro Valley, CA 94546
Castro Valley, CA 94546
Dues
After July 1st all new membership dues are half (½)
Due Date: Jan 1
Single Member: $35
Couples Dues: $60
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