|
Green Dioptase Crystals, Argentina
|
| |
The colorful meta marble matrix has
a calcite filled vug that holds deep green, transparent prisms of
dioptase, up to ½ inch in length. Dioptase is hydrous silicate
of copper and forms as a secondary mineral from weathered zones of
copper ore deposits. This Argentine mineral specimen, measuring 4
inches by 2 inches by 2 1/2 inches, is a superb display of Dioptase.
Alternating images. |
| Item Number: diopar02 |
Price: $ 65.00 |
|
|
|
|
|
Blue-Green Smithsonite, Argentina
|
| |
zinc carbonate with a tint of copper
Blue-green smithsonite coats calcite crystals on meta marble matrix.
4 inch by 3 inch by 1 inch. |
| Item Number: smitat04 |
Price: $ 26.00 |
| |
|
|
|
Blue Smithsonite, Argentina
|
| |
A coating of blue smithsonite coats
one side of the red meta-marble matrix. The 2 1/2 by 2 3/4 inch by
1 1/4 inch smithsonite mineral specimen is zinc carbonate with a tint
of copper. |
| Item Number: smitar05 |
Price: $ 26.00 |
| |
|
|
|
Buergerite Tourmaline Crystals
|
| |
NaFe3Al6Si6O18(BO3)3O3F, Sodium Iron
Aluminum Boro-silicate Oxide
Buergerite is a rare iron and sodium rich tourmaline with fluorine.
The blocky triangular prisms are striated lengthwise. Bronze to brown
color with transparency at the surface, The buergerite crystals are
from Governador Valadares, Minas Gerias, Brazil. 2 inch by 1 1/2 inch
by 1 1/2 inch buergerite is a solid mass of buergerite showing 1/2
inch faces and patches of muscovite mica books. |
| Item Number: trbubr02 |
Price: $ 25.00 |
| |
|
|
|
Azurite Crystal Floret
|
| |
Deep blue azurite crystals form a 1
1/2 inch by 1 1/2 inch by 3/4 inch thick, 14 gram double floret cluster. |
| Item Number: azumex08 |
Price: $ 21.00 |
|
|
|
|
|
Azurite Crystal Floret
|
| |
A deep blue azurite floret has four
small circular mounds forming the 1 inch by 1 inch by 3/4 inch, 20
gram, solid azurite mineral specimen from Los Olivos Mine, Chihuahua,
Mexico |
| Item Number: azumex09 |
Price: $ 29.00 |
| |
|
|
|
Azurite Crystal Floret
|
| |
The cluster of lustrous azurite crystals
is 1 1/2 inch by 1 1/2 inch by 1 inch and weighs 27 grams. There is
a small amount of malachite on one side. Los Olivos Mine, Chihuahua,
Mexico |
| Item Number: azumex10 |
Price: $ 34.00 |
|
|
|
|
|
Large Purple Cubic Fluorite Mexico
|
| |
1 1/2 to 2 inch cubes of dark purple
fluorite have smaller cubes telescoping from the large faces. The
dark purple fluorite is very translucent. The 6 inch by 5 inch by
2 3/4 inch, 3 pound 1 1/2 ounce, fluorite is from Mexico. The interlaced
and telescoping cubic faces give the surface a shimmering effect.
This large, cabinet sized, l specimen is attractive mineral display. |
| Item Number: flumex21 |
Price: $ reserved |
|
|
|
|
|
Goethite Cast of Crystal
|
| |
A calcite crystal was covered with a
cast of metallic goethite. The calcite crystal dissolved over time
and left the goethite cast. The goethite has a bright metallic luster
over the vertical striations and bubbly surface. The mineral specimen,
from Mexico, is 1 3/4 inch tall, by 1/2 inch by 5/8 inch. |
| Item Number: goetcs01 |
Price: $ 19.00 |
|
|
|
|
|
Hemimorphite Crystal Sprays, Mexico
|
| |
Hemimorphite is hydrous zinc silicate
formed as a secondary mineral in oxidized mineral deposits. 1 1/4
inch by 1 inch by 7/8 inch clustered sprays of transparent blade crystals
are from Chihuahua Mexico. |
| Item Number: hempht01 |
Price: $ 18.00 |
|
|
|
|
Pyromorphite and Adamite, Mexico
|
| |
Brown limonite gossan holds tiny green
pyromorphite (lead chlorophosphate)and clear fluorescent adamite crystals
(arsenate of zinc). Location. Mapimi Durango, Mexico |
| Item Number: pyadmx01 |
Price: $ 15.00 |
|
|
|
|
|
Rare Black Tourmaline Stalactite, Mexico
|
| |
Velvety black folds ripple across the
black tourmaline, schorl, stalactite from Sonora, Mexico. The velvet
texture and undulating appearance of the surface of the stalactite
formation afford incredible beauty to this rare form of black tourmaline.
The main stalacite is 1 3/4 inches long with the base measuring 2
inches by 1 1/2 inches. The entire specimen, which weighs 35 grams,
is black tourmaline in the inter-layered needle structure that forms
the velvet texture. |
| Item Number: trmstl01 |
Price: $ 55.00 |
|
|
|
|
|
Rhodochrosite, Drusy Quartz, Galena from Peru
|
| |
Drusy quartz, pink from included rhodochrosite,
has many tabular crystals of pink to brown rhodochrosite perched on
the surface. The sparkling quartz and rhodochrosite covers a galena
matrix that is a mass of 1/4 to 1/2 inch crystals that have stepped
faces with brilliant metallic luster. 3 inch by 2 inch by 1 1/2 inch
rhodochrosite mineral specimen is from Raura, Peru. |
| Item Number: rhodpr01 |
Price: $ 85.00 |
|
|
|
|
Cassiterite Mineral Specimen
|
| |
The 3/4 inch thumbnail mineral specimen
is stacks of cassiterite crystals that end in a triangular open book.
The tin oxide mineral specimen is from Araqual, Minas Gerais, Brazil. |
| Item Number: cassbr01 |
Price: $ 19.00 |
|
|
|
|
|
Manganosiderite, Brazil
|
| |
A shiny matrix of mica and feldspar
crystals with a porcelain luster hold siderite crystal rhombohedra
from 3/8 to 5/8 inch. The source of Governador Valadares, Minas Gerais,
Brazil refers to these as manganosiderite. The mineral specimen is
1 3/4 inch by 1 3/4 inch by 1 1/4 inch. |
| Item Number: sidrbr01 |
Price: $ 19.00 |
| |
|
|
|
Lepidolite, Brazil
|
| |
potassium lithium aluminum flurosilicate
in the mica group. The botryoidal formation of lepidolite is a bubbly
mass composed of elastic laminas with a lavender color. 1 pound mineral
specimen is 4 inches by 3 inches by 2 1/2 inches. |
| Item Number: lepdbr02 |
Price: $ 34.00 |
|
|
|
|
|
Lepidolite, Brazil
|
| |
potassium lithium aluminum flurosilicate
in the mica group. The botryoidal formation of lepidolite is a bubbly
mass composed of elastic laminas with a lavender color. 1 pound mineral
specimen is 5 inches by 2 3/8 inches by 2 inches. |
| Item Number: lepdbr03 |
Price: $ 32.00 |
|
|
|
|
|
Manganosiderite, Brazil
|
| |
A shiny matrix of mica and feldspar
crystals with a porcelain luster hold siderite crystals rhombohedra.
The compact1 ½ by 1 by 1 inch mineral specimen has a grouping
of ½ inch siderite crystals. The source of Governador Valadares,
Minas Gerais , Brazil refer to these as manganosiderite |
| Item Number: sidrbr02 |
Price: $ 24.00 |
|
|
|
|
|
Manganosiderite, Brazil
|
| |
A shiny matrix of mica and feldspar
crystals with a porcelain luster hold siderite crystals rhombohedra.
The compac t1 ½ by 1 by 1 inch mineral specimen has a grouping
of ½ inch siderite crystals. The source of Governador Valadares,
Minas Gerais. |
| Item Number: sidrbr03 |
Price: $ 16.00 |
|
|
|
|
|
Dioptase Crystals, Argentina
|
| |
hydrous silicate of copper
7 inch by 2 1/2 inch by 3 inch Argentine mineral specimen is colorful
pink marble matrix with dioptase and micro galena shot through it.
The top is coated with calcite cleavages and dioptase prisms up to
1/2 inch. Dioptase this size is a rare occurence for the Western Hemisphere. |
| Item Number: diopar07 |
Price: $ 250.00 |
|
|
|
|
|
Dioptase Crystals, Argentina
|
| |
Marble matrix holds calcite crystals
and dioptase prisms up to 1/2 inch long. These are some of the larger
dioptase crystals in the Western Hemisphere. Location: The 6 by 5
by 3 1/2 inches mineral specimen from Northern Argentina also has
dioptase shot through the country rock. |
| Item Number: diopar05 |
Price: $ 195.00 |
|
|
|
|
|
More Calcites!
|
| |
This page is all calcite mineral specimens
from North and South America, Africa, and other localities around
the world. Calcite has more crystal forms than any other mineral.
Cruise this page to see some of the calcite crystal varieties. Tsumeb
calcites have many secondary metal minerals. |
| |
|
| |
|
|
|
