Weathered Rock With Lichen Growth Appraisals

Quartz Specimen with Iron Staining

Banded Natural Specimen

Natural Stone

Botryoidal Chalcedony Specimen

Botryoidal Chalcedony and Quartz Specimen

Botryoidal Chalcedony on Matrix

Banded Calcite/Aragonite Mineral Specimen

Unidentified Stone

Botryoidal Chalcedony Specimen

Botryoidal Chalcedony Specimen

Rough Sodalite Mineral Specimen

Uncut Agate

Unspecified Stone Artifact

Natural Mineral Specimen (Possibly Quartz or Chalcedony Geode Fragment)

Rough Mineral Specimen

Rough Opal or Similar Mineral Specimen

Desert Rose Gypsum Cluster

Quartz Geode

U2 Portfolio

Banded Agate Specimen

Rough Mineral Specimen

Raw Chalcedony Specimen

Natural Stone Artifact

Chalcedony or Agate Specimen

Muscovite Mica Specimen

Botryoidal Chalcedony with Matrix

Botryoidal Chalcedony or Geode Fragment

Agate and Quartz Geode Fragment

Raw Botryoidal Quartz or Chalcedony Specimen

Botryoidal Agate or Chalcedony Specimen

Raw Mineral Specimen (Ochre and Dark Mineral)

Assorted Natural Quartz Geodes and Mineral Specimens

Unpolished Chalcedony Geode (Thunderegg)

Copper Ore Sample

Node of Crystalline Structure

Chert (Flint) Specimen with Inclusion

Botryoidal Mineral Specimen

Polished River Stone

Geode or Mineral Cluster

Botryoidal Chalcedony Nodule