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"Connoisseur’s Choice" by Robert Cook

Connoisseur’s Choice
Rocks & Minerals Magazine by Dr. Robert Cook

An Index Prepared by Dakota Matrix Minerals

Mineral collecting is a hobby which can bring satisfaction at any level. A beginner needs only a rock pick and a pair of hiking boots. The amateur “rock hound” might buy a book on mineralogy, such as National Audubon Society’s Field Guide to North American Rocks and Minerals and collect rocks in the field at a local quarry or road outcrop. A seasoned field collector would examine the rocks and minerals with book in hand and study them to gain a thorough understanding of their chemistry, associations and the geologic environment in which they occur. An advanced field collector may travel afar to old mines after researching a mining district and obtain minerals after digging in the old mine dumps or exploring hazardous underground mine workings. Still some collectors yearn for specimens they cannot field collect. In this case, many mineral collectors purchase specimens at rock shops, at rock shows or online such as this website, dakotamatrix.com. Purchasing minerals to build your collection is rewarding and satisfying. Many mineral dealers sell basic, ordinary or rare minerals to good quality aesthetic specimens. The quality of mineral specimens you purchase depends on your budget and you can easily spend twenty five to tens of thousands of dollars at a mineral show or online. For a hundred to five hundred dollars or more, a collector should be able to purchase a fine quality specimen, a specimen which a connoisseur would purchase. At this level you should expect an undamaged, beautiful specimen with qualities that are well above average for that particular mineral.

Fortunately, Rocks and Minerals magazine published by Taylor & Francis offers a monthly column called “Connoisseur’s Choice”.  The column is written by Dr. Robert Cook, a long-time executive editor of Rocks & Minerals magazine and currently professor emeritus at Auburn University. Dr. Cook has chosen minerals with pleasing aesthetics which occur at worldwide localities. The “Connoisseur’s Choice” is not only chosen for the mineral itself but often the locality in which it occurs. The “Connoisseur’s Choice” mineral is in essence the standard by which all other localities are measured. Cook’s choices typically take into account: exceptional quality, color, crystal size, perfection, mineralogical importance, and rarity. In addition the column discusses the mineral’s properties, the geological environment, and a thorough synopsis of all known localities where the mineral is found. Below is an alphabetized index for each Connoisseur’s Choice column. Please contact us for available Rocks and Minerals back-issues at dmmcart@gmail.com. We have a limited supply at low costs.

Mineral

Locality

Year

Vol.

No.

Author

Acanthite

Silver King mine, Park City, Utah. 

2004

79

2

by Robert B. Cook

Adamite

Ojuela Mine, Mapimi, Durango, Mexico.

1999

74

1

by Robert B. Cook

Afghanite

Sar-e-Sang, Badakhsham Province, Afghanistan. 

2004

79

3

by Robert B. Cook

Almandine

New York City, New York County, New York State

2009

84

3

by Robert B. Cook

Analcime

Mont Saint-Hilaire, Quebec, Canada

2006

81

2

by Robert B. Cook

Anatase

Hardangervidda, Norway

2002

77

6

by Robert B. Cook

Anglesite

Touissit Mine, Oujda, Morocco.

1999

74

2

by Robert B. Cook

Annabergite

Kilometer 3 Mine, Laurium District, Greece

2010

85

2

by Robert B. Cook

Atacamite

Moonta mine, South Australia, Australia

2006

81

5

by Robert B. Cook

Aurichalcite

79 mine, Gila County, Arizona

2005

80

6

by Robert B. Cook

Autunite

Daybreak mine, Spokane County, Washington

2005

80

3

by Robert B. Cook

Azurite

Tsumeb, Namibia, and Touissit, Oujida, Morocco.

2002

77

1

by Robert B. Cook

Barite

Wasta, Pennington County, South Dakota.

1994

69

3

by Robert B. Cook

Benitoite

San Benito County, California.

1994

69

6

by Robert B. Cook

Beryl, variety emerald

Chivor Mine, Chivor, Columbia.

1993

68

5

by Robert B. Cook

Beryl, Variety Morganite

San Diego County, California

2011

86

1

by Robert B. Cook

Bournonite

Yaogangzian mine, Chenzhou, Hunan Province, China.

2005

80

1

by Robert B. Cook

Brazilianite

Corrego Frio, Minas Gerias, Brazil.

2000

75

1

by Robert B. Cook

Brochantite

Blanchard mne, Bingham, New Mexico

2009

84

1

by Robert B. Cook

Brookite

Dodo Mine, Subpolar Urals, Russia. 

2003

78

3

by Robert B. Cook

Calaverite

Cripple Creek, Colorado

2010

85

5

by Robert B. Cook

Cassiterite

Cinovec, Czech Republic

1997

72

3

by Robert B. Cook

Cavansite

near Wagholi, Poona district, Maharashtra, India.

1996

71

3

by Robert B. Cook

Celestine

Maybee quarry, Monroe County, Michigan

1996

71

2

by Robert B. Cook

Cerrusite

Tsumeb, Namibia

1997

72

4

by Robert B. Cook

Chalcocite

Hartford County, Connecticut.

1995

70

6

by Robert B. Cook

Chalcophyllite

Wheal Gorland, Gwennap, Cornwall, England

2009

84

5

by Rob Bowell and Robert B. Cook

Chalcopyrite

French Creek Iron Mine, Chester County, Pennsylvania

2008

83

1

by Robert B. Cook

Chondrodite

Tilly Foster Mine, Brewster Area, Putnam County, New York

2007

82

6

by Robert B. Cook

Chrysoberyl

Minas Gerais and Bahia, Brazil, and Takovaya, Russia.

1999

74

5

by Robert B. Cook

Cinnabar

Cinnabar, near Lovelock, Pershing County, Nevada.

1996

71

6

by Robert B. Cook

Copper

Ray mine, Pinal County, Arizona

1997

72

1

by Robert B. Cook

Covellite

Summitville, Rio Grande Co., Colorado

2006

81

4

by Robert B. Cook

Creedite

Cresson mine, Teller Co., Colorado

2008

83

5

by Robert B. Cook

Crocoite

Dundas, Tasmania, Australia

2007

82

1

by Robert B. Cook

Cubanite

Chibougamuau, Quebec, Canada.

2000

75

6

by Robert B. Cook

Cuprite

Mashamba West mine, Shaba, Democratic Republic of Congo and Red Dome mine, Queensland, Australia.

2001

76

4

by Robert B. Cook

Cuprosklowdowskite

Musonoi, Dem. Rep. Of Congo

2009

84

2

by Rob Bowell and Robert B. Cook

Danburite   

Charcas, San Luis Potosi, Mexico.

2003

78

6

by Robert B. Cook

Datolite

Dalnegorsk, Primorskiy Kray, Russia

2010

85

4

by Robert B. Cook

Demantoid

Val Malenco, Sondrio, Italy.

1993

68

3

by Robert B. Cook

Diamond

Jagersfontein Mine, Free State Province, South Africa

2000

75

5

by Robert B. Cook

Dioptase

Tsumeb, Namibia.

2002

77

3

by Robert B. Cook

Epidote

Knappenwand, Untersulzbachtal, Salzburg, Austria.

2002

77

5

by Robert B. Cook

Erythrite

Bou Azzer, Morocco

2007

82

5

by Robert B. Cook

Ferberite

Panasqueira, Portugal

1998

73

4

by Robert B. Cook

Fluorapatite

Inna Nala, near Fighar Village, Nagar District, Pakistan.

1993

68

2

by Robert B. Cook

Fluorapophyllite

Fluorapophyllite, Jalgaon, Maharashtra, India.

1995

70

2

by Robert B. Cook

Fluorite

Chamonix, Haut-Savoie, France

1998

73

1

by Robert B. Cook

Galena

Milliken mine, Reynolds County, Missouri

1997

72

2

by Robert B. Cook

Gold

Jamestown, Toulumne County, California.

1994

69

1

by Robert B. Cook

Hematite

Cavradi, Switzerland

1998

73

3

by Robert B. Cook

Hemimorphite pseudomorphs after calcite

Joplin, Missouri

1997

72

6

by Robert B. Cook

Inesite

 Wessels Mine, Northwest of Kuruman, Kalahari Manganese District, Cape Province, South Africa

2011

86

3

by Janet H. Clifford

Kyanite

Minas Gerais, Brazi;

2008

83

6

by Robert B. Cook

Lazulite

Graves Mountain, Lincoln County, Georgia.

2008

83

4

by Robert B. Cook

Linarite

Mammoth-St. Anthony mine, Tiger, Pinal Co., Arizona

2006

81

3

by Robert B. Cook

Liroconite

Gwennap, Cornwall, England.

2001

76

6

by Robert B. Cook

Luanheite

Elisa Debordos mine, northern Chile

2002

77

2

by Robert B. Cook

Ludlamite

Blackbird Mine, Cobalt, Lemhi County, Idaho

1998

73

6

by Robert B. Cook

Magnetite

Zinc Corp. of America No. 4, St. Lawrence Co., New York

2008

83

3

by Robert B. Cook

Malachite

Shaba Region, Democratic Republic of Congo

2001

76

5

by Robert B. Cook

Manganite

Ilfeld, Harz, Germany.

1999

74

4

by Robert B. Cook

Metatorbernite

Shaba district, Zaire

1998

73

5

by Robert B. Cook

Microcline, variety amazonite

Yucca Hill Prospect, Park County, Colorado.

1993

68

4

by Robert B. Cook

Millerite

Millerite, Halls Gap, Lincoln County, Kentucky.

1995

70

4

by Robert B. Cook

Mimetite

Tsumeb, Namibia

2001

76

2

by Robert B. Cook

Molybdenite

Allies mine, Deepwater, New England region, NSW, Australia

2007

82

2

by Robert B. Cook

Olivenite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia

2008

83

2

by Robert B. Cook

Orpiment

Twin Creeks mine, Humboldt County, Nevada.

2000

75

2

by Robert B. Cook

Parisite

Parisite, Muzo District, Colombia.

2000

75

4

by Robert B. Cook

Petzite

Bald Mountain, Sonora, Tuolumne County, California.

2004

79

1

by Robert B. Cook

Phenakite

Mount Antero, Chaffee Co., Colorado

2009

84

4

by Robert B. Cook

Platinum

Konder Massif, Khabarovsk Territory, Far Eastern Region, Russia

2011

86

5

by Robert B. Cook

Polybasite

Husky mine, Elsa, Yukon Territory, Canada

2006

81

1

by Robert B. Cook

Powellite

Pandulena Hill, Nasik, Maharashtra State, India.

1994

69

4

by Robert B. Cook

Prehnite

Brandberg, Namibia.

1999

74

3

by Robert B. Cook

Proustite

Delores mine, Chanarcillo, Chile

1996

71

5

by Robert B. Cook

Pyrargyrite

Fresnillo, Zacatecas, Mexico.

2002

77

4

by Robert B. Cook

Pyrite

Pyrite, Park City district, Utah.

1993

68

6

by Robert B. Cook

Pyromorphite

Bunker Hill mine, Coeur d'Alene district, Shoshone County, Idaho

2001

76

3

by Robert B. Cook

Pyrrhotite

Santa Eulalia, Chihuahua, Mexico.

2003

78

4

by Robert B. Cook

Realgar

Jiepaiyu mine, Shimen, Hunan Province, China.

2005

80

2

by Robert B. Cook

Rhodochrosite

Alma, Park County, Colorado.

1993

68

1

by Robert B. Cook

Rhodonite

Broken Hill, New South Wales, Australia

2005

80

4

by Robert B. Cook

Rutile

Graves Mountain, Lincoln County, Georgia.

2003

78

2

by Robert B. Cook

Rutile-included quartz

Waterbury, Vermont

1996

71

4

by Robert B. Cook

Scheelite

Camp Bird mine, Ouray County, Colorado.

1996

71

1

by Robert B. Cook

Scolecite

Pune (Poona), Maharashtra, India.

2004

79

4

by Robert B. Cook

Scorodite

Hezhou Prefecture, Guangxi Zhuang Autonomous Region, China

2010

85

3

by Robert B. Cook

Shattuckite

Kunene dist, Kaokoveld, Namibia

2009

84

6

by Rob Bowell and Robert B. Cook

Silver

Uchucchacua, Peru.

2003

78

1

by Robert B. Cook

Smithsonite

Tsumeb, Namibia.

2000

75

3

by Robert B. Cook

Sperrylite

Talnakh, Noril'sk district, Siberia, Russia.

2001

76

1

by Robert B. Cook

Spessartine

Marienfluss, Northern Namibia

2010

85

1

by Robert B. Cook

Sphalerite

Eagle Mine, Gilman, Eagle County, Colorado.

2003

78

5

by Robert B. Cook

Spodumene var. Kunzite

Nuristan, Afghanistan

1997

72

5

by Robert B. Cook

Stannite

Freiberg, Saxony, Germany

2006

81

6

by Robert B. Cook

Stibnite

Murray Mine, Elko County, Nevada.

1999

74

6

by Robert B. Cook

Stolzite

Ste.-Lucie Mine, Ste.-Leger de Peyre, Lozere, France.

2004

79

6

by Robert B. Cook

Sulfur

Perticara, Italy. 

1995

70

5

by Robert B. Cook

Sylvanite

Vindicator mine, Cripple Creek, Teller County, Colorado.

2005

80

5

by Robert B. Cook

Tennantite

Tsumeb, Namibia

2011

86

4

by Paul W. Pohwat

Tetrahedrite

Cavnic, Romania

2010

85

6

by Paul W. Pohwat

Uraninite 

Strickland Quarry, Portland Connecticut, and Topsham, Maine.

2004

79

5

by Robert B. Cook

Uranocircite

Sao Pedro Mine, Malacacheta district, Minas Gerais, Brazil.

1994

69

5

by Robert B. Cook

Uvarovite

Outokumpu, Finland

1998

73

2

by Robert B. Cook

Vanadinite

Mibladen, Morocco.

1995

70

1

by Robert B. Cook

Vivianite

Morococala area, Oruro, Bolivia.

1994

69

2

by Robert B. Cook

Wavellite

Mauldin Mountain, Montgomery County, Arkansas

2011

86

2

by Robert B. Cook

Witherite

Fallowfield, Northumberland, England

2007

82

3

by Robert B. Cook

Wulfenite

San Francisco Mine, Magdalena, Sonora, Mexico.

1995

70

3

by Robert B. Cook

Zircon

Helen Hunt Falls Area, El Paso County, Colorado

2007

82

4

by Robert B. Cook

 

 

 

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