This stunning specimen of malachite resembles a marine boulder encrusted with greenery, which can almost be seen to undulate in a gentle marine current. The fronds are pseudomorphs, the replacement of one mineral in its original crystal shape by another, in this case azurite (another copper carbonate mineral). The green bubbles are secondary malachite, showing a habit called botryoidal.
The specimen is from Brazil, and measures 10x8x5 Cm.
$30 au or $23 usd Including shipping Either setting lace or plain.
I have one left so be quick if you would like one and message me :)
Each pendant comes with a silver chain. The Stones are 4cm x 3cm.
Malachite has a great number of attributes that make it a wonderful stone to be used for metaphysical purposes, in particular its power to protect you from negative entities.
Its action to protect you from negative energies is one of its most powerful attributes, as it creates a strong barrier around you energetically.
These green crystals have an excellent action to aid you to take action, and to make changes in your life where required. It aids creativity, enhances the development of your intuition, and is a strong stone for the heart, both for the physical heart and to aid your healing emotionally.
This green stone has an impressive energy that is very effective for psychic protection. It is known to embody a powerful attribute that conceals your energy field from negative entities.
Paypal bank transfer or I can set up an etsy listing for you. :)
Malachite is a copper carbonate hydroxide mineral. This opaque, green banded mineral crystallises in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and spaces, deep underground, where the water table and hydrothermal fluids provide the means for chemical precipitation. Individual crystals are rare but do occur as slender to acicular prisms. Pseudomorphs after more tabular or blocky azurite crystals also occur.
Malachiteis a copper carbonate hydroxide mineral. This opaque, green banded mineral crystallises in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and spaces, deep underground, where the water table and hydrothermal fluids provide the means for chemical precipitation. Individual crystals are rare but do occur as slender to acicular prisms. Pseudomorphs after more tabular or blocky azurite crystals also occur.
Azurite is a soft, deep blue copper mineral produced by weathering of copper ore deposits. It is also known as Chessylite after the type locality at Chessy-les-Mines near Lyon, France.The mineral, a carbonate, has been known since ancient times, and was mentioned in Pliny the Elder’s Natural History under the Greek name kuanos (κυανός: “deep blue,” root of English cyan) and the Latin name caeruleum. The blue of azurite is exceptionally deep and clear, and for that reason the mineral has tended to be associated since antiquity with the deep blue colour of low-humidity desert and winter skies.
We’re a little over a month away from the Tucson Arizona Gem and Mineral show, perhaps the most famous exposition of gem crystals on Earth every year. Here’s a tour through the 2015 show with some examples of the amazing specimens you can find at this show. #MineralMonday
I’ve created a colorful set of solutions mostly from mineral samples in the geology lab. From left to right, we have:
CoCl2 was obtained by stealing some from the chemistry stockroom. I initially tried to get a pink solution of MnCl2 by dissolving rhodochrosite (manganese carbonate) in hot HCl, but that didn’t work very well…
FeCl2 was created by crushing siderite (iron carbonate) and dissolving it in HCl. The reaction was relatively slow, but works at room temperature.
[CuCl4]2- was created by adding excess NaCl (which is the mineral halite) to a CuCl2 solution. Extra chloride forms a coordination complex with the copper (II) ion, resulting in a green solution.
CuCl2 was created by dissolving malachite (copper carbonate*) in HCl.
CuSO4 was created by dissolving chalcanthite (copper sulfate) into water. It should be roughly the same color as the CuCl2 solution, but the sample here is just more dilute.
BaCl2 was created by dissolving witherite (barium carbonate) in HCl. The reaction was very fast, comparable to that of dissolving calcite (calcium carbonate).
*Malachite contains some hydroxide, so it is actually a copper carbonate hydroxide: Cu2CO3(OH)2
The two variants of copper carbonate (blue azurite and green malachite) are vying to catch our eye as the most beautiful in this stunning 2cm piece from Congo. The acicular crystals (needle shaped) of azurite formed inside the botryoidal malachite rind as the rock was transformed by carbonated and oxygenated waters from the suplhides of the original ore deposit. As mineralised areas approach the surface, being uncovered by erosion above, the minerals are exposed to these reactive substances again after a long period in the dark depths of the Earth.
Wood is often fossilised by replacement with silica, sometimes even precious opal, but the variant found in Turkey is often coloured a beautiful blue by copper laced waters infiltrating through the rock. While it is usually found cut into domed cabochon gems, I always prefer rough, and this wonderful 25cm specimen is no exception. Native copper, green malachite, blue azurite and a bit of turquoise have all made it into the mix, and the colour reveals beautifully the pattern of fractures in the rock through which the fluids spread before ditching their metallic cargo. The minerals present tell us that these waters were oxidised (see http://on.fb.me/1I4XWKt for an explanation of what this means) and carbonate rich (malachite and azurite), with a hint of extra phosphorous (turquoise). The grain and knots in the ancient tree make a beautiful backdrop to the later mineralisation, superimposed like the silica as a palimpsest of natural pattern on a long dead tree.