Cal often joint ventures with Leonard Himes since Cal left Pala Properties International and they frequently do shows as Graeber & Himes from coast to coast, providing high-quality mineral specimens and rarities.
Cal is a geological engineer with a degree from the Colorado School of Mines. In addition to attending the major shows in the U.S., he has a home showroom where he meets clients by appointment. He also maintains a busy lab for specimen preparation and has years of experience as a mineral appraiser. Cal is also a veteran field collector. He is a partner in UK Mining Ventures, providing the world with superb green fluorite from England.
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Appraisal Services
- Appointments
- Prep Lab
- East Africa Wholesale
- Minerals
- Lapidary Items
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