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Aventurine Quartz and Dumortierite Beads

The gemstone, aventurine quartz or aventurine for short, thanks its name to aventurine glass or goldstone (see: http://dunebeads.com/en/lab-created-stone-beads-night-blue-goldstone) which was discovered by chance (it. All'avventura) during the 18th century.

Aventurine exists in green, blue & silver gray, but also in creamy yellow, orange & reddish brown, depending its mineral inclusions. The green quartz holds chrome-rich fuchsite (mica), while the blue variety contains inclusions of Dumortierite. As Aventurine consists of two minerals, depending whether the second mineral is considered an inclusion or not, it is sometimes classified as a rock and quartzite instead of quartz.

Dune beads' green Aventurine varies in color from pale to dark green, whereas blue Aventurine comes as well in pale blue as in deep indigo. But this translucent to opaque gemstone is particularly appreciated for its 'aventurescence', a shimmering effect similar to the one of labradorite (feldspar).

Although green Aventurine is sometimes mistaken for amazonite or jade, all these gemstones lack the appealing velvety sheen of Aventurine.

Some believe that green Aventurine brings inner peace while the blue encourages communication and is the alternative birthstone of August. Peach or red brown Aventurine on the other hand is said to boost decision making and creativity.

Dumortierite, the mineral responsible for the color of blue Aventurine, is named after the French paleontologist, Eugène Dumortier and has a mottled silky appearance. It comes often in lovely deep shades of blue, purple-red or green. It's often used in high-end ceramics as it becomes pristine white through heating. Sometimes it may be confused with Sodalite and Lapis Lazuli.

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10x10 mm, guru, gemstone beads, aventurine, green, natural, 2 sets

Gemstone, green aventurine, natural, guru or prayer beads - 10x10 mm T-drilled round bead & tower bead - Mohs' hardness 6.5-7.0 – one unit has 2 sets or 4 pieces
From €4.59

10x10 mm, round, gemstone beads, aventurine, green, natural

Gemstone, green aventurine, natural, 10x10 mm, round beads - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 19 beads
From €2.97

10x10 mm, round, gemstone beads, aventurine, green, natural, faceted

Gemstone, green aventurine, natural, 10x10 mm, round beads - 64 facets - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 19 beads
From €5.11

10x10 mm, round, gemstone beads, aventurine, grey blue, natural

Gemstone, grey blue aventurine, natural, 10x10 mm, round beads - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 19 beads
From €4.06

10x10 mm, round, gemstone beads, aventurine, peach-orange red, natural, faceted

Gemstone, peach-orange red aventurine, natural, 10x10 mm, round bead - in 64 facets - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 19 beads
From €3.70

13x18 mm, twisted oval, gemstone beads, aventurine, green, natural

Gemstone, green aventurine, natural, 13x18 mm, twisted oval beads - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 12 beads
From €4.75

5x8 mm, rondelle, gemstone beads, aventurine, green, natural

Gemstone, green aventurine, natural, 5x8 mm, rondelle beads – Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 38 beads
From €3.16

6x6 mm, round, gemstone beads, aventurine, blue, natural

Gemstone, blue aventurine, natural, 6x6 mm, round beads - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 31 beads
From €2.97

6x6 mm, round, gemstone beads, aventurine, green, natural

Gemstone, green aventurine, natural, 6x6 mm, round beads - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 31 beads
From €2.24

6x6 mm, round, gemstone beads, aventurine, green, natural, faceted

Gemstone, green aventurine, natural, 6x6 mm, round beads - 64 facets - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 32 beads
From €3.58

6x6 mm, round, gemstone beads, aventurine, green, natural, frosted

Gemstone, green aventurine, natural, 6x6 mm, round beads – frosted – Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 31 beads
From €2.60

8x8 mm, round, gemstone beads, aventurine, grey blue, natural

Gemstone, grey blue aventurine, natural, 8x8 mm, round beads - Mohs' hardness 6.5-7.0 - one unit is +/- 19 cm and has +/- 23 beads
From €2.99