Geological Survey Appraisals

Unique River Stone

Mineral Specimen

Copper Ore Sample

Chert (Flint) Specimen with Inclusion

Massive Blue Mineral Specimen (Possible Sapphire or Corundum-bearing Rock)

Botryoidal Mineral Specimen

Terahertz Raw Stone

Polished River Stone

Amethyst and Pyrite Mineral Cluster

Natural Drusy Mineral Specimen

Unpolished Agate or Chalcedony Mineral Specimen

Rough Blue-Gray Mineral Specimen

Iridescent Mineral Fragment

Amethyst Geode Section

Raw Selenite Cluster

Assorted Rocks

Specimen of Silvery Mineral

Botryoidal Chalcedony Geode Specimen

Raw Malachite/Chrysocolla Mineral Specimen in Quartz Matrix

Rough Red Jasper Mineral Specimen

Mineral Specimen with Copper Mineralization

Natural Mineral Specimen with Translucent Stone

Raw Rose Quartz Crystal Specimen

Raw Mineral Specimen

Botryoidal Chalcedony with Quartz Specimen adhered to Matrix

Unpolished Mineral Specimen

Rough Green Serpentine or Jade Mineral Specimen

Raw Quartz Mineral Specimen with Iron Staining

Reddish-Brown Rock Fragment

Raw Geode Specimen

Small Irregular Mineral Fragment

Raw Opal/Chalcedony Specimen

Iridescent Carborundum Crystal Specimen (Silicon Carbide)

Rough Citrine Quartz Specimen

Raw Botryoidal Mineral Specimen

Raw Rose Quartz Crystal

Fossilized Marine Organism Rock Specimen

Botryoidal Chalcedony or Opal in Matrix Specimen

Unidentified Cryptocrystalline Quartz Mineral Specimen

Rough Agate or Jasper Specimen