Red Beryl from Wah Wah Mountains, Utah

 

M & W Minerals

Walter R. Kellogg

 

517 294 6709

mwminerals@comcast.net

                           

 Inosilicates Gallery

Inosilcates are called the chain silicates and are composed of two classes, the single chain and double chain silicates.

The single chain silicates have SiO4 tetrahedrons which share two oxygens with two other tetrahedrons forming  a virtually endless chain. This makes for a ratio of silicon to oxygen of 1:3. The tetrahedrons alternate to the left and to the right of the axis formed by the linked oxygens. More complex chains can form a spiral. In cross section, the chain forms a trapezoid. It is this shape which produces the angles between the faces of the crystals and the directions of cleavage.

 The double chain silicates have  two single chains which lie next to each other. An oxygen ion links each of the right sided tetrahedrons in the left chain with the left sided tetrahedrons in the right chain. Because there is an extra shared oxygen for every four silicons,  the ratio of silicon to oxygen is reduced to 4:11. The double chain is a chain of six sided rings. It has a similar cross section to a single chain, except the trapezoid is longer, which produces a different set of angles.

The cleavage of the chain silicates occurss between the chains; the chains are not broken. This produces a prismatic cleavage. For single chained silicates, the two directions of cleavage are close to 90 degrees which forms almost square cross sections. For double chain silicates, the cleavage angle is close to 120 and 60 degrees which forms rhombic cross sections.

Single chain silicates: Neptunite, Okenite, Pectolite, The Pyroxene group (Aegerine, Augite, Diopside, Spodumne (Kunzite, Hiddenite), Jadeite and others), Rhodonite, Serandite, Shattuckite, and others

Double chain silicates: Amphibole group (Actinolite, Edenite, Cummingtonite, Hornblende, Inesite, Tremolite, Richterite, Glaucophane and others), Astrophyllite, Babingtonite, Charoite, Inesite, Plancheite and others

minerals in alphabetical order by first letter only

click on the title link or photo to proceed to a specimen's page


A

6624 Astrophyllite and Aegerine in Nepheline Syenite Matrix
Minerals Specimen: Astrophyllite and Aegerine in Nepheline Syenite Matrix from Khibiny Massif, Murmansk Oblast, Russia

Khibiny Massif, Murmansk Oblast, Russia
Ex. Norm Woods
9.3 x 7.3 x 5.2 cm
$75

4599 Green Quartz (Included Hedenbergite), Hendenbergite, Calcite, Pyrite
Minerals Specimen: Green Quartz (Included Hedenbergite), Hendenbergite, Calcite, Pyrite from Mina San Antonio, East Camp, Santa Eulalia Dist., Mun. de Aquiles Serdan, Chihuahua, Mexico

Mina San Antonio, East Camp, Santa Eulalia Dist., Mun. de Aquiles Serdan, Chihuahua, Mexico
7.8 x 4.8 x 4.3 cm
$50

B

3997 Blue Babingtonite on Quartz
Minerals Specimen: Blue Babingtonite on Quartz from Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey

Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey
Ex. A. C. Moretta #720, Ex. A. E. Seaman Museum
3.7 x 3.1 x 2.1 cm
$75

E

6029 Elpidite, Manganoan Calcite
Minerals Specimen: Elpidite, Manganoan Calcite from Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada

Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada
Na2ZrSi6O15·3H2O
4.5 x 4.2 x 4.6 cm
$75

H

6774 Hornblende, Fluorapatite, minor Mica
Minerals Specimen: Hornblende, Fluorapatite, minor Mica from Gibson Road, Tory Hill, Haliburton Co., Ontario, Canada

Gibson Road, Tory Hill, Haliburton Co., Ontario, Canada
14 x 6.7 x 5 cm
$75

2666 Tremolite variety Hexagonite
Minerals Specimen: Tremolite variety Hexagonite from Balmat-Edwards Zinc District, St Lawrence County, New York, USA

Balmat-Edwards Zinc District, St Lawrence County, New York, USA
7.6 x 6.4 x 2.3 cm
$25

J

4050 Augite variety Jeffersonite - 3 pieces
Minerals Specimen: Augite variety Jeffersonite - 3 pieces from Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey

Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey
Ex. Steve Pullman
x x cm
6.7 x 4.1 x 3.3 and 3.7 x 3.6 x 2.3 and 4.2 x 3.2 x 3 cm
$80

K

6557 Kenotobermorite (labeled as Tobermorite)
Minerals Specimen: Kenotobermorite (labeled as Tobermorite) from The aggregate is one of the largest crystals available.

The aggregate is one of the largest crystals available.
Type Location
[Ca4Si6O15(OH)2·2H2O]·3H2O
Ex. Wolfgang Henkel
4 x 1.1 x 0.7 cm
$150

3910 Kupletskite, Elipidite, Aegirine
Minerals Specimen: Kupletskite, Elipidite, Aegirine from Gjerdingselva, Nordmarka, Lunner, Oppland, Norway

Gjerdingselva, Nordmarka, Lunner, Oppland, Norway
(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F, (Na,Ca)2ZrSi6O15·3H2O
Ex. Steve Pullman
6.2 x 5.7 x 3.5 cm
$35

R

820 Rhodonite Cabochon
Minerals Specimen: Rhodonite Cabochon from Brazil

Brazil
3.7 x 2.7 x 0.4 cm
$15 Discounted to $9

S

3799 Shattuckite Included in Quartz
Minerals Specimen: Shattuckite Included in Quartz from Kaokoveld Plateau, Kunene Region, Namibia

Kaokoveld Plateau, Kunene Region, Namibia
Cu5(Si2O6)2(OH)2
3.2 x 3.1 x 2.8 cm
$45

T

3515 Tremolite
Minerals Specimen: Tremolite from Smoky Tremolite Occurrence, Monmouth Twp., Haliburton Co., Ontario, Canada

Smoky Tremolite Occurrence, Monmouth Twp., Haliburton Co., Ontario, Canada
8.3 x 4 x 3.2 cm
$65

U

4349 Uralite, Epidote
Minerals Specimen: Uralite, Epidote from Calumet Mine, Turret District, Chaffee Co., Colorado, USA

Calumet Mine, Turret District, Chaffee Co., Colorado, USA
7.8 x 6.5 x 4.5 cm
Epidote XL is 2.7 long and 1.1 cm in width
$40

3339 Uralite and Epidote with Calcite
Minerals Specimen: Uralite and Epidote with Calcite from Calumet Mine, Turret District, Chaffee Co., Colorado, USA

Calumet Mine, Turret District, Chaffee Co., Colorado, USA
11.5 x 7.5 x 5.5 cm
Largest XL 7 x 3 x 1 mm
$30

Specimens which have this class of minerals as an associated mineral

6957 Aegerine with minor Astrophyllite in Nepheline Syenite Matrix
Mineral Specimen: Aegerine with minor Astrophyllite in Nepheline Syenite Matrix from Barkevikskjaer, Langesundsfjorden, Larvik, Vestfold og Telemark, Norway

Barkevikskjaer, Langesundsfjorden, Larvik, Vestfold og Telemark, Norway
Type Location
(K,Na,Ca)7.5(Mn,Mg)49 Si72O168(OH)50·nH2O
Ex. Steve Pullman
5.1 x 3.5 x 2.2 cm
$25

6776 Agrellite, Eudialyte, Albite, Calcium
Mineral Specimen: Agrellite, Eudialyte, Albite, Calcium from Kipawa alkaline complex, Les Lacs-du-Temiscamingue, Temiscamingue RCM, Abitibi-Temiscamingue, Quebec, Canada

Kipawa alkaline complex, Les Lacs-du-Temiscamingue, Temiscamingue RCM, Abitibi-Temiscamingue, Quebec, Canada
Type Location
Ex. Roy Virtue
9 x 6.2 x 4.6 cm
$75

6744 Dioptase, Plancheite
Mineral Specimen: Dioptase, Plancheite from Bonanza Mine (Harquahala Mine), Martin Peak, Salome, La Paz County, Arizona

Bonanza Mine (Harquahala Mine), Martin Peak, Salome, La Paz County, Arizona
Ex. Steve Pullman
6 x 3.8 x 3.2 cm
$50

6934 Chromium Grossular Garnet, Calcite, Diopside, Chromite
Mineral Specimen: Chromium Grossular Garnet, Calcite, Diopside, Chromite from Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Quebec, Canada

Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Quebec, Canada
1960s
11.1 x 7.6 x 5 cm
$45

6743 llvaite, Quartz, Hedenbergite
Mineral Specimen: llvaite, Quartz, Hedenbergite from Laxey Mine,

Laxey Mine,
Ex. Steve Pullman
3.6 x 2.6 x 2.4 cm
$45

6371 Ilvaite, Arsenopyrite, Hedenbergite, Tremolite
Mineral Specimen: Ilvaite, Arsenopyrite, Hedenbergite, Tremolite from Huanggang Mine, Inner Mongolia, China

Huanggang Mine, Inner Mongolia, China
6.3 x 5.6 x 4.6 cm
$100

6064 Ilvaite coated with Hedenbergite, Arsenopyrite
Mineral Specimen: Ilvaite coated with Hedenbergite, Arsenopyrite from Huanggang Mine, Inner Mongolia, China

Huanggang Mine, Inner Mongolia, China
4.5 x 3.8 x 3.2 cm
$35

5947 Petarasite, Aegirine variety: Acminte, Nephiline Syenite
Mineral Specimen: Petarasite, Aegirine variety: Acminte, Nephiline Syenite from Desourdy Quarry (later incorparated into Poudrette Quarry), Mont Saint-Hilaire,  Monteregie, Quebec, Canada

Desourdy Quarry (later incorparated into Poudrette Quarry), Mont Saint-Hilaire, Monteregie, Quebec, Canada
Type Location
Na5Zr2Si6O18(Cl,OH)·2H2O
Ex. Carneige Museum Lorenzo White collection, Ex. Ward's
5.8 x 3.8 x 2.4 cm
$75

4096 Blue Quartz, Magnesio-Riebeckite
Mineral Specimen: Blue Quartz, Magnesio-Riebeckite from Grubach, Golling, Salzburg, Austria

Grubach, Golling, Salzburg, Austria
1 cm grid on 3rd picture
$45

6924 Rhodochrosite, Elpidite, Leifite, Calcite, Albite
Mineral Specimen: Rhodochrosite, Elpidite, Leifite, Calcite, Albite from Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada

Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada
Elpidite - Na2ZrSi6O15·3H2O, Leifite - Na7Be2(Si15Al3)O39(F,OH)2
5.2 x 5.8 x 4.4 cm
largest rhodochrosite crystals is 5 mm on longest edge
$75

6038 Rhodochrosite, Elpidite, Leifite, Calcite, Albite
Mineral Specimen: Rhodochrosite, Elpidite, Leifite, Calcite, Albite from Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada

Poudrette Quarry, Mont Saint-Hilaire, Rouville RCM, Monteregie, Quebec, Canada
Elpidite - Na2ZrSi6O15·3H2O, Leifite - Na7Be2(Si15Al3)O39(F,OH)2
5.1 x 4.4 x 4.4 cm
$150

5192 Sodalite Crystals, Hornblende
Mineral Specimen: Sodalite Crystals, Hornblende from Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
Ex. University of Michigan - 1933, Ex. Cureton Mineral Co., Ex. Southwest Mineral Co., Ex. Carnegie Museum - White collection
5.7 x 4.7 x 3.8 cm
$50

4220 Rubellite Tourmaline, Spodumene, Quartz
Mineral Specimen: Rubellite Tourmaline, Spodumene, Quartz from Haapaluoma pegmatite, Peraseinajoki, Seinajoki,  Finland

Haapaluoma pegmatite, Peraseinajoki, Seinajoki, Finland
Ex.H. R. McBroom, from a trade with Karl Alasaprela in 1977
8.2 x 6.3 x 3.6 cm
$85

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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