Scientific Specimen Appraisals

Rough Blue-Gray Mineral Specimen

Unidentified Mineral Ore Specimen

Chert (Flint) Specimen with Inclusion

Botryoidal Chalcedony or Agate Specimen

Cave Onyx Specimen

Mineral Specimen with Copper Mineralization

Raw Grape Agate (Botryoidal Chalcedony) Specimen

Raw Mineral Specimen

Raw Agate or Chalcedony Specimen in Host Rock

Botryoidal Chalcedony with Quartz Specimen adhered to Matrix

Botryoidal Chalcedony Mineral Specimen

Botryoidal Mineral Specimen

Rough Rhodonite Mineral Specimen with Associated Minerals

Blue and Gold Mineral/Ore Specimen

Unpolished Golden Translucent Mineral Specimen

Chalcedony or Agate Mineral Specimen

Raw Mineral Specimen

Botryoidal Chalcedony Mineral Specimen

Polished Chrysoprase Specimen with Natural Matrix

Raw Quartz Mineral Specimen with Iron Staining

Rough Agate or Chalcedony Specimen

Iridescent Carborundum Crystal Specimen (Silicon Carbide)

Unidentified Cryptocrystalline Quartz Mineral Specimen

Botryoidal Chalcedony and Quartz Specimen

Botryoidal Chalcedony Specimen

Botanical Illustration

Mottled Green and White Rough Mineral Specimen

Natural Rough Rose Quartz Specimen

Rough Mineral Specimen

Rough Opal or Similar Mineral Specimen

Desert Rose Gypsum Cluster

Banded Agate Specimen

Milky Quartz or Chalcedony Specimen

Rock Specimen with Embedded Inclusions

Raw Botryoidal Quartz or Chalcedony Specimen

Raw Quartz Crystal Specimen

Muscovite Mica Specimen

Metamorphic Rock Specimen with Silvery Mineral Inclusions

Natural Drusy Mineral Specimen

Mineral Specimen