Stone Guide

Dragon Septarian dark crystal-lined cavity — material detail from an Arcane Skull sculpture

Dragon Septarian: Mineral Veins, Crystal Caviti...

A collector’s guide to Dragon Septarian’s mineral veins, crystal-lined cavities and sculptural character, including formation, selection and care.

Dragon Septarian: Mineral Veins, Crystal Caviti...

A collector’s guide to Dragon Septarian’s mineral veins, crystal-lined cavities and sculptural character, including formation, selection and care.

Clear Quartz, Malachite, Red Crazy Lace Agate, and Black Obsidian carvings on the cover of Real or Imitation? A Guide to Natural Stone Carvings

Real or Imitation? How to Evaluate Natural Ston...

A practical guide to evaluating quartz, malachite, agate, and obsidian carvings—what visual clues can reveal, where they fall short, and what to ask before buying.

Real or Imitation? How to Evaluate Natural Ston...

A practical guide to evaluating quartz, malachite, agate, and obsidian carvings—what visual clues can reveal, where they fall short, and what to ask before buying.

Black Obsidian stone specimen shown in the Arcane Skull material guide

Black Obsidian: Volcanic Glass, Surface Charact...

Black obsidian is natural volcanic glass. Learn how it forms, how it behaves in carving, what collectors should examine, and how to care for it.

Black Obsidian: Volcanic Glass, Surface Charact...

Black obsidian is natural volcanic glass. Learn how it forms, how it behaves in carving, what collectors should examine, and how to care for it.

Dream Amethyst stone specimen shown in the Arcane Skull material guide

Dream Amethyst: Layered Quartz, Chevron Banding...

Dream Amethyst is patterned quartz combining purple amethyst with pale quartz. Learn how its chevrons form, how it behaves in carving, and how to care for it.

Dream Amethyst: Layered Quartz, Chevron Banding...

Dream Amethyst is patterned quartz combining purple amethyst with pale quartz. Learn how its chevrons form, how it behaves in carving, and how to care for it.

African Bloodstone stone specimen shown in the Arcane Skull material guide

African Bloodstone: Mineral Identity, Red-Green...

A collector guide to African Bloodstone’s rugged red-green pattern, natural variation, symbolic presence, carving character and care.

African Bloodstone: Mineral Identity, Red-Green...

A collector guide to African Bloodstone’s rugged red-green pattern, natural variation, symbolic presence, carving character and care.

Howlite stone specimen shown in the Arcane Skull material guide

Howlite: Natural Veining, Imitations, and Carvi...

A collector-focused guide to Howlite, covering its mineral identity, natural veining, dyed turquoise imitations, carving behavior and care.

Howlite: Natural Veining, Imitations, and Carvi...

A collector-focused guide to Howlite, covering its mineral identity, natural veining, dyed turquoise imitations, carving behavior and care.