| For digital photography, SoLux bulbs are perfect, yielding accurate rendition of difficult-to-photograph minerals such as dioptase and azurite. |
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| The most common nodules are pure azurite in radially fibrous masses that exhibit a peculiar satiny sheen or chatoyancy on broken surfaces. |
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| Many of the world's finest specimens of native copper, azurite, malachite, atacamite, and a host of other minerals originated in this manner. |
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| A frequently used mineral source of blue was azurite, a copper carbonate which was called lapis armenius as it originally came from Armenia. |
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| For instance, azurite, chrysocolla, and turquoise bring to mind vivid images of various shades of blue. |
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| In some fractures bordering the clay seams, azurite and malachite occur as masses of alternating, crudely parallel bands. |
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| These contain veins of supergene copper minerals, mostly azurite and malachite. |
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| Associated minerals are azurite, quartz, plancheite, cerussite, and mottramite. |
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| Microcrystals of azurite and goethite and a small number of microcrystals of chalcocite were also recovered. |
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| However, collecting in the pits has yielded beautiful microcrystals of azurite and malachite on quartz. |
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| Associated minerals are olivenite, chalcophyllite, clinoclase, comwallite, strashimirite, malachite, azurite, and cuprite. |
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| Often, the powdery azurite encloses a small grain of cuprite, forming a blue halo that disperses into the siltstone. |
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| Good nodular masses of azurite, some of which contain bladed crystals to 5 cm, occur in the Chingola mine, Zambia. |
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| Locally stalactitic malachite, occasionally associated with well-crystallized azurite, occurred in the copper ores at Corocoro, Bolivia. |
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| Only a handful of high-quality azurite in equant blocky crystals to 4 cm have been found in these pockets so far. |
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| The result can be some of our most spectacular minerals, including azurite, malachite, smithsonite, wulfenite, pyromorphite, and mimetite. |
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| Dark blue stubby pyramidal azurite crystals and green botryoidal-shaped radial aggregates of malachite. |
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| Some of the most attractive contain spraylike aggregates of velvety malachite in and on lustrous blue-black azurite crystals. |
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| Blue bice, however, has also been used to refer to the pigment produced from grinding the copper carbonate mineral azurite. |
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| Cuprite was found mainly as red encrustations associated with azurite and malachite on copper. |
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| Morocco continues to astound with its wealth of vanadinite, azurite, cerussite, and erythrite. |
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| The inclusion of azurite blue and lake glazes indicates that this was a sophisticated and expensive colour scheme. |
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| But if you are photographing a dark mineral such as azurite, the camera will lighten the exposure in an attempt to yield a medium value, making the image overexposed. |
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| Copper and its alloys most commonly alter to the green or blue carbonates of copper, malachite, or azurite or to the red-oxide mineral cuprite. |
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| Many of the best Tsumeb cerussite, dioptase, azurite, smithsonite, and other specimens passed through his hands en route to some faraway collection. |
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| It is more abundant and widespread than azurite, with which it is usually found. |
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| The patina is magnificent, combining greenish tints of malachite and dabs of blue azurite. |
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| The Algomah mine is best known for lapidary material and copper-bearing microminerals, including plancheite, kinoite, dioptase, azurite, and atacamite. |
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| The opaque minerals in these rocks consist of chalcopyrite, bornite, malachite, azurite and Fe-oxide. |
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| Oxide copper mineralization comprises cuprite, malachite, azurite, native copper and chrysocolla. |
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| Oxide mineralization consists of minor quartz veining associated with pitch limonite, cuprite, chrysocolla, malachite, and azurite. |
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| Oxide mineralization comprises azurite, cuprite and minor malachite, chrysocolla, neotocite, pitch limonite and native copper. |
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| Chrysocolla is one of a small group of copper-bearing gems that includes malachite, azurite, larimar, oregon sunstone and paraiba tourmaline, as well as turquoise. |
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| Oxide mineralization consists of limonite, cuprite, azurite, malachite, chrysocolla and native copper. |
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| These results show that paragenesis of mineralization of chalcopyrite, pyrite, malachite, azurite, garnet and magnetite occurred. |
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| The beautiful patina shows traces of malachite, cuprite and azurite. |
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| A number of minerals have been identified in Palmer Land, including magnetite, hematite, limonite, chalcopyrite, pyrite, and azurite, and traces of gold and silver have been discovered. |
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| One of the interesting features of chrysocolla is that it is often found mixed with other secondary copper minerals such as malachite, azurite and turquoise or with quartz. |
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| We can thus make out several restorations, in particular a 2cm wide horizontal strip made of azurite covering the entire width at the top of the painting. |
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| This effect can be obscured by pigments such as azurite and malachite. |
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| Oxide mineralization consists of cuprite, azurite, malachite, chrysocolla and minor native copper. |
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| Mineralization principally consists of copper oxides, malachite, azurite, chrysocolla, and atacamite and to lesser extent chalcopyrite and bornite. |
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| The intensity of mineralization generally decreases below 500m and comprises quartz-limonite veinlets, azurite, malachite, cuprite, and minor chrysocolla. |
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