Bob Griffis Minerals

08/06/2026

Here is a real Rarity from the famous Sanat Eulalia District in Mexico.

Sphalerite with Galena

San Antonio Mine, Santa Eulalia District, Mun. de Aquiles Serdan, Chihuahua, Mexico

Large stepped crystals of lustrous black Sphalerite to 2.2 x 1.8 cm cover this specimen from the famous San Antonio Mine. A large brassy Arsenopyrite measuring 1.0 x 0.9 cm and Galena crystals to 2.0 cm are tucked amongst the Sphalerites. This specimen was collected by Brian Bond as part of his 1970s MSc Thesis field work from now flooded underground workings. A fabulous specimen.

SIZE: 80 x 53 x 39 mm (Small Cabinet)

COLLECTION: ex. Marty Houhoulis collection
Specimen Number: MMH-38
https://www.bobgriffis.com/specimenMMH-38.html

08/01/2026

SOLD - Available on my website

Spessartine and smoky Quartz
Tongbei, Fujian, China

82x37x16 mm (small cabinet)

08/01/2026

Available on my website

Spessartine and smoky Quartz
Tongbei, Fujian, China

84x72x71 mm (small cabinet)

07/22/2026

Just released 50 specimens to our website from the Casey Jones collection, Marty Houhoulis collection and my personal collection. They can be found at:
https://www.bobgriffis.com/new_minerals_2026-07-20_MixedCollections_id125.html

07/03/2026

Our newest update includes 37 minerals mostly from the USA, China, Mexico, and includes a rare-color wulfenite from Tsumeb. We have also slashed prices on over one half of the specimens available.
The new specimens can be found at:
https://www.bobgriffis.com/new_minerals.php?id=124&date=2026-07-02&title=MiscMinerals&type=new_minerals&page=1

06/26/2026

Large plate (11.1 x 9.5 x 9.0 cm) of Anatase on Quartz from Hardangervidda National Park, Hordaland Fylke, Norway. ex. Hubert de Monmonier (1919-2007) collection. ex. University of Arizona Alfie Norville Gem & Mineral Museum collection. Complete 360 degrees.

DM if interested.

06/24/2026

Anatase from Norway AVAILABLE

Large plate (11.1 x 9.5 x 9.0 cm) of Anatase on Quartz from Hardangervidda National Park, Hordaland Fylke, Norway. ex. Hubert de Monmonier (1919-2007) collection. ex. University of Arizona Alfie Norville Gem & Mineral Museum collection.

DM if interested.

05/25/2026

Over one half of my website is on sale, so check it out! If something catches your eye and is not on sale, send me a note and I will gladly come up with a generous discount! www.bobgriffis.com

04/03/2026

Available.

This aesthetic specimen host a perfect, sharp, well-formed, 16 x 8 x 8 mm, silvery-black Anatase crystal, with mirror-bright faces. This doubly-terminated Anatase is perfectly placed on a small bit of matrix accented by a druse of nearly colorless quartz crystals. The extremely high luster makes the...

04/02/2026

Josh is a great field collector in Colorado, and an all round nice guy!

Every day in Josh’s life contains some kind of adventure. You might find him hiking t… Leslie Fate needs your support for Support Josh's Healing from Leukemia