
Agate geode Nevada |

Agate geode Nevada (shortwave UV) |

Agrellite Kipawa River, Villedieu Township, Quebec, Canada |

Agrellite Kipawa River, Villedieu Township, Quebec, Canada (shortwave UV) |

Amber in lignite Pueblo, Colorado |

Amber in lignite Pueblo, Colorado (longwave UV) |

Calcite, fluorite Princeton, New Jersey |

Calcite, fluorite Princeton, New Jersey (midrange UV) |

Calcite geode half Oklahoma |

Calcite geode half Oklahoma (midrange UV) |

Talc Talcville, New York |

Talc Talcville, New York (shortwave UV) |

Calcite (massive) near New Windsor, Carroll County, Maryland |

Calcite (massive) near New Windsor, Carroll County, Maryland (shortwave UV) |

Calcite, willemite, fluorite Arizona |

Calcite, willemite, fluorite Arizona (longwave + shortwave UV) |

Chalcedony western USA |

Chalcedony western USA (shortwave UV) |

Eucryptite Parker Mountain, Strafford, New Hampshire |

Eucryptite Parker Mountain, Strafford, New Hampshire (shortwave UV) |

Eudyalite, agrellite Kipawa River Complex, Quebec, Canada |

Eudyalite, agrellite Kipawa River Complex, Quebec, Canada (shortwave UV) |

Calcite Franklin Mineral Dump, Franklin, New Jersey |

Calcite Franklin Mineral Dump, Franklin, New Jersey (shortwave UV) |

Tremolite, tirodite Balmat, New York |

Tremolite, tirodite Balmat, New York (shortwave UV) |

Hydrozincite Yellowpine Mine, Goodsprings, Nevada |

Hydrozincite Yellowpine Mine, Goodsprings, Nevada (shortwave UV) |

Quartz, calcite location unknown |

Quartz, calcite location unknown (midrange UV) |

Ruby Mysore, India |

Ruby Mysore, India (longwave UV) |

Calcite Lebanon Junction, Kentucky |

Calcite Lebanon Junction, Kentucky (longwave UV) |

Willemite cabochons Franklin, New Jersey |

Willemite cabochons Franklin, New Jersey (shortwave UV) |

Willemite, fluorite Yuma County, Arizona |

Willemite, fluorite Yuma County, Arizona (shortwave UV) |

Wollastonite, calcite 340ft level, Sterling Hill Mine, Ogdensburg, New Jersey |

Wollastonite, calcite 340ft level, Sterling Hill Mine, Ogdensburg, New Jersey (shortwave UV) |

Manganaxinite Franklin, New Jersey |

Manganaxinite Franklin, New Jersey (shortwave UV) |

Fayalite, loellingite, willemite, sphalerite from the black ores Sterling Hill Mine, Ogdensburg, New Jersey |

Fayalite, loellingite, willemite, sphalerite from the black ores Sterling Hill Mine, Ogdensburg, New Jersey (shortwave UV) |