Red Beryl from Wah Wah Mountains, Utah


M & W Minerals

Walter R. Kellogg


517 294 6709


All Prices US Dollars

 Fine mineral specimens. Specializing in minerals from North and South America, rare species, native Copper specimens, specimens from Michigan, Tourmaline, and Thumbnails.

Updates Email Bulletins: If you want to receive an email each time new minerals are added to the website (usually, each Wednesday) please send an email to We do not automatically add you to the email list when you buy something and then force you to tell us to take you off the email list.

Updates occur every Wednesday at 12:00 noon EST time (5:00 PM GMT) except in the case of holidays or shows.

Currently for sale on the website there is a total of 3124 mineral specimens,  which includes 1079  specimens with individual web pages, 1085  thumbnail specimens and 960  on the galleries of mineral specimens priced under 25 dollars.

Minerals sold on the website (first sale 12/5/09): 9729

Minerals returned with full refund: 15  -  and later resold to a satisfied customer: 13  Minerals returned and exchanged for a different specimen: 11

Minerals  damaged in shipping with full refund:  Minerals damaged in transit but collector did not want refund: Packages lost in transit: 5 

 Packages returned because of delivery problems: 6

Minerals damaged in transition for which a partial refund was made and the collector kept the specimen: 8

Mineral specimens returned without the collector opening the package, because they decided they wanted something different: 5

Minerals sold to collectors in the countries of Austria, Australia, Belgium, Brazil, Bulgaria, Canada (all 10 provinces and Yukon Territory), China, Cyprus, Denmark, England, Finland, France, Germany, Greece, Indonesia, Israel, Italy, Japan, Malaysia, Mexico, Mongolia, Netherlands, New Zealand, Norway, Pakistan, Peru, Poland, Portugal,  Russia, Scotland, Singapore, Slovak Republic, Slovenia, South Africa, Spain, Switzerland, Thailand and Wales and all 50 of the states of the US and Washington D.C.

Mineral Galleries    Under 25 Dollars   Study & Hobby Samples   Links  Thumbnails Show Schedule

Mineral Specimen Datolite from Madan Gravel Pit, Keweenaw Co., Michigan

Mineral Specimen: Malachite on Plancheite from Democratic Republic of Congo

Sulfur, Celestine from Maybee, Michigan



Latest Updates

United States

Stalactic Quartz from Pune India

Previous Updates

Mineral Specimen: Bicolor Tourmaline from Minas Gerais, Brazil



 Minerals from Geographic Regions

United States

Minerals Specimen: Double Terminated Hexagonal Calcite, Malachite, Druze Quartz from Sweetwater Mine, Viburnum Trend Dist., Reynolds Co., Missouri


Minerals Specimen: Brazilianite on Albite from Jenipapo, Itinga, Minas Gerais, Brazil



Minerals Specimen: Serandite, Analcime from Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada


Minerals Specimen: Double Terminated Amethyst from Epimenio mine, Pierda Parada, Veracruz, Mexico


Minerals Specimen: Duftite over Dolomite over Rhombohedral Calcite from Tsumeb, Namibia


South and Central America

Minerals Specimen: Emerald Crystal (Polished?) from Colombia




Mineral Specimen: Ruby corundum from Mysore, India


Minerals Specimen: Copper Crystals from Copper Falls Mine, Copper Falls, near Eagle Harbor, Keweenaw County, Michigan, USA 


Minerals Specimen: Copper from Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA


New York

Minerals Specimen: Hexagonite (variety of Tremolite) from Balmat-Edwards Zinc District, St Lawrence County, New York, USA


Minerals Specimen: Benitoite from Gem Mine, San Benito County, California, USA


New Jersey


New England

Minerals Specimen: Watermelon Tourmaline from Mt. Mica, Paris, Oxford County, Maine, USA


 Galleries by Special Interest

Rare Species

Minerals Specimen: Cuprotungstite on Quartz with Green Scheelite from Carrera Pinto, Cachiyuyo de Llampos, Copiapo, Atacama, Chile

Pseudomorphs and Casts


Minerals with Inclusions

Minerals Specimen: Ankangite, Jamesonite, Fluorapatite Included in Quartz from Pitangui, Minas Gerais, Brazil


Minerals Specimen: Dendritic Wire Copper on Etched Calcite from Tsumeb, Namibia

Polished and Worked

Minerals Specimen: Agate from Baker Egg Ranch, Carrizalillo District, Luna Co., New Mexico, USA


Sorted by Most Recent

 Minerals Specimen: Tanzanite Crystal - 3.67 ct from Merelani Hills (Mererani), Lelatema Mts, Arusha Region, Tanzania


Sorted Alphabetically 

Minerals Specimen: Amazonite from Father's Day Pocket, Crystal Creek Area, Teller Co., Colorado June2007

 Galleries by Species or Group


Minerals Specimen: Tourmaline on Quartz from Barra do Salinas, Coronel Murta, Minas Gerais, Brazil



Minerals Specimen: Copper Crystals, Adularia Crystals, Massive Microcline, Epidote and Quartz from Adventure mine, Butler Lode, Greenland, Ontonagon County, Michigan, USA


Minerals Specimen: Analcime Crystals with Calcite Geode from Paterson, Passaic Co., New Jersey



Minerals Specimen: Calcite from Charcas, San Luis Potosi, Mexico




Minerals Specimen: Fluorite from Cave-In-Rock, Hardin County, Illinois


 Minerals Specimen: Pink Topaz on Quartz with Magnesite from Brumado, Bahia, Brazil



Gold and Silver


Minerals Specimen: Spessartine Garnet and Muscovite on Microcline from Tongbei, Fujian, China



 Systematic Galleries

Native Elements 

Minerals Specimen: Sulfur from Maybee Quarry, Maybee, Monroe Co., Michigan

Oxides & Hydroxides

Minerals Specimen: Hematite variety: Black Diamond from Sherwood Mine, Iron County, Michigan USA


Minerals Specimen: Marcasite Stalactite (Repaired) from Blackstone Mine, Shullsburg, Lafayette Co., Wisconsin







Barite - Frizington, Cumberland, England


Borates and Hydrocarbons


Minerals Specimen: Chalcopyrite Crystals on Danburite from Mina La Aurora, Charcas, San Luis Potosi, Mexico



Minerals Specimen: Hexagonite (variety of Tremolite) from Balmat-Edwards Zinc District, St Lawrence County, New York, USA


Marialite - Brazil


Minerals Specimen: Benitoite from Gem Mine, San Benito County, California, USA 


Minerals Specimen: Lepidolite from Coronel Murta, Minas Gerais, Brazil 



 Galleries by Price 

Under 25 Dollars

Minerals Specimen: Stilbite from Fairfax County, Virginia, USA

25 to 49 Dollars

50 to 99 Dollars

Minerals Specimen: Schorl Tourmaline on Aquamarine from Mimoso do Sul Mine, Mimoso do Sul, Espirito Santo, Brazil 

100 to 199 Dollars

Minerals Specimen: Calcite with Included Copper from Quincy Mine, Houghton Co., Michigan

200 to 299 Dollars

Minerals Specimen: Aquamarine and Schorl Tourmaline from Erongo Mountain, Erongo Region, Namibia

300 to 499 DollarsMinerals Specimen: Duftite over Dolomite over Rhombohedral Calcite from Tsumeb, Namibia

500 Dollars and GreaterMinerals Specimen: Euclase from Chivor Mine, Mun. de Chivor, Guavio-Guateque Mining Dist., Boyaca Dept., Colombia

Wulfenite on Mottramite from the 79 Mine, Hayden, Gila Co., Arizona