Search results: “MANGANESE”
Showing 1–15 of 81 results
- Australian Minerals, Minerals of the World
CHALCEDONY MANGANESE
Aussie Chalcedony Manganese specimen for sale. An interesting botryoidal grey blue Chalcedony on black Manganese to add to your Aussie collection. Rarely offered for sale and not often collected as it’s not the prettiest looking rock on the ground. From the famous fossicking area of Mount Isa.
Location:
Hardway Mine, Mount Isa, Queensland, Australia.Dimensions:
7cm x 7.4cm x 6cm, 210g.CHALCEDONY
Chalcedony is a variety of Quartz. A general term for all varieties of quartz that are made of microcrystalline varieties of quartz. Examples are the different types of agate, jasper, chert, chrysoprase, onyx, pietersite, etc.
Mentioned by Agricola (1546) of a stone named for the town of Chalcedon, and is a district within the city of Istanbul, Turkey.MANGANESE
MnManganese is named from a corruption of the latin word for magnestism; magnes, in allusion to its prinicple ore’s magnetic properties. Manganese crystals have yet to be found in nature, therefore it is technically not a mineral. Laboratory grown specimens can look like a natural stone.
The element manganese is an essential element in people’s daily food consumption and has several industrial uses. Manganese is used in steel alloys to increase many favorable characteristics such as strength, hardness and durability. In fact steel can not be produced without manganese; it is an essential ingredient in the process. Manganese is also used to colour glass an amethyst colour. That is not so surprising since manganese is the trace element responsible for quartz’s purple variety, amethyst.
Manganese colouring ability in minerals is well known and appreciated. Manganese is chiefly responsible for the wonderful colours in rhodochrosite, purpurite, rhodonite, serandite and spessartine to name a few. Unfortunately most manganese oxide minerals tend to be black. Manganese is extracted from the ore minerals of pyrolusite and rhodochrosite. Manganese nodules on the sea floor may one day provide an economic ore source.
Properties
Colour is steel or silver grey.
Luster is metallic.
Transparency: Specimens are opaque.
Crystal System is isometric.
Crystal Habits include only lab grown specimens.
Specific Gravity is 7.44 (very heavy for a metallic mineral).
Notable Occurrences include only lab grown specimens.
Best Field Indicators are colour and density.Chek out Manganese Mn specimens for sale here.
SKU: AM23CM01 - Australian Minerals, Fluorescent Specimens
AUSSIE MANGANO CALCITE CRYSTALS
A large quality Aussie Mangano Calcite Crystals specimen. Featuring beautiful crystals that are extremely fluorescent under long wave UV and short wave UV light. What a stunner, this specimen is a pale pink in daylight and neon pink fluorescing under UV light. If you only need one piece of this mineral, this would be an excellent choice. Step your collection up a level with this super Aussie crystal. This specimen shows BIP Brief Intense Phosphorescence with a UVA laser.
This is a rare quality calcite crystal specimen. Super collectable for your crystal, mineral, calcite or fluorescent specimen collection. This beautiful small cluster would make a knockout gift. The very pink photos were taken under UVA and UVC filtered light.
Dimensions:
19cm x 19cm x 6cm, 2279g.Location:
Broken Hill, NSW, Australia.Mangano Calcite:
(Ca,Mn)CO3.SKU: AM23MC02 - Australian Minerals, Fluorescent Specimens
MANGANO CALCITE CRYSTALS BH
A large quality Aussie Mangano Calcite Crystals BH specimen. Featuring beautiful crystals that are fluorescent under long wave UV and short wave UV light. What a stunner, this specimen is white in daylight and pink fluorescing under UV light. If you only need one piece of this mineral, this would be an excellent choice. Step your collection up a level with this super Aussie crystal. This specimen shows BIP Brief Intense Phosphorescence with a UVA laser, pic with luminescent circle shows this. There are some fine Pyrite Crystals on the surface of this specimen from one direction – characteristic of other specimens from this local. Good fine dog-tooth crystals on botryoidal mounds.
This is a rare quality calcite crystal specimen. Super collectable for your crystal, mineral, calcite or fluorescent specimen collection. This beautiful small cluster would make a knockout gift. The very pink photos were taken under UVA and UVC light.
Dimensions:
27cm x 20.5cm x 5cm, 3106g.Location:
Broken Hill, NSW, Australia.Mangano Calcite:
(Ca,Mn)CO3.SKU: AM23MC01 - Crystals, Minerals of the World, Top Shelf
NEPTUNITE
A rare mineral specimen of Neptunite is for sale. A stunning piece with a cluster of Black Neptunite in the center of White Natralite. This specimen is from old stock.
KNa2Li(Fe, Mn)2Ti2Si8O24
Potasium Sodium Lithium Iron Manganese Titanium Silicate.Location:
New Idria Mine, San Benito, Calafornia, USA.Dimensions:
9.5cm x 6.4cm x 5.5cm, 187g.Neptunite was discovered during this century and is rare. Its most famous specimens come from the wonderful deposits at San Benito County in California. This site contains natrolite veins in a serpentinite rock.
SKU: MW23N01 - Jade, Other Treasures
JADE BASE CLOCK
Large Stone Jade Base Clock. Possibly to grace a lovely Mantel shelf above the fire. The clock face is Marbled Stone from near a Jade mine. The base is made of Nephrite Jade from Cowell. Hand made by a traveling stone craftsperson.
Location:
This Jade Base is from Cowell, South Australia, Australia.Dimensions:
55.5cm x 30cm x 8cm, 6,670g.JADE
Toughest Natural Stone in the World
SKU: n/a - Spheres
PINK RHODONITE SPHERE 1
Beautiful Pink Rhodonite Sphere 1 for sale with great colour. The lovely Pink is the Rhodonite and the Black is Manganese Oxide. A classic, collectable specimen. As you can see the beautiful pink color really comes out in the full sun photos. The high quality gloss finish is shown off better from pics in the shade outside. This sphere comes with a low profile hematite ring stand for enhanced display. Check out the stunning pics of this individual sphere on this page.
Location:
South Africa.Dimensions:
6.8cm, 564g.SKU: S22R01 - Australian Minerals, Spheres
PINK RHODONITE SPHERE 2
Beautiful Pink Rhodonite Sphere 2 for sale with great colour. The lovely Pink is the Rhodonite and the Black is Manganese Oxide. . A classic, collectable specimen mined, cut and polished in Australia. As you can see the beautiful pink color really comes out in the full sun photos. The high quality gloss finish is shown off better from pics in the shade outside. This sphere comes with a low profile hematite ring stand for enhanced display. Check out the stunning pics of this individual sphere on this page.
Location:
Woods Mine, New England District, NSW, Australia.Dimensions:
7.1cm, 664g.SKU: S22R02 - Australian Minerals, Spheres
PINK RHODONITE SPHERE 3
Beautiful Pink Rhodonite Sphere 3 for sale with great colour. The lovely Pink is the Rhodonite and the Black is Manganese Oxide. . A classic, collectable specimen mined, cut and polished in Australia. As you can see the beautiful pink color really comes out in the full sun photos. The high quality gloss finish is shown off better from pics in the shade outside. This sphere comes with a low profile hematite ring stand for enhanced display. Check out the stunning pics of this individual sphere on this page.
Location:
Woods Mine, New England District, NSW, Australia.Dimensions:
8.5cm, 987g.SKU: S22R03