Grape Agate/Botryoidal Amethyst

Grape AgateBotryoidal Amethyst

NEW FIND!

Grape Agate is a very interesting new material that was introduced to the market in the latter half of 2016. It was discovered some years back along one of Indonesia's island coastal areas, Manakarra Beach in the Mamuju Area, Sulawesi Barat Province, West Sulawesi Island, Indonesia. Since its discovery the Indonesian government had not allow it to be collected or exported until late 2016. We found an exclusive import dealer at the 2017 Franklin, NC Show who we buy from every year. The specimens we choose are nice lavender colors with associated moss-green Celadonite making a superb contrast. At the 2020 show we found some specimens with amazing small clear Quartz crystals on the specimens as well.

These have been called Grape Agate, Grape Chalcedony, Amethyst Grapes and probably more names we have yet to hear. We originally called them Grape Chalcedony Agate due to their color, botryoidal formation and their cluster formation. Later just Grape Agate as they form combinations of fine brilliant purple radial aggregates "balls" that resemble a bunch of grapes that have a stunning three-dimensional form and enticingly sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. What drew us as a dealer and provider for collectors to this new find is that it is a common mineral with an uncommon color and habit in the mineral world from a new locality.

Purple is a highly desirable color for mineral specimens as evidenced by the demand for Amethyst, Opalized Fluorite (Tiffany Stone) and Purple Fluorite to name a few. Like most new discoveries, it’s unpredictable to say how much more will be available, and what quality the specimens will be. Normally the best material tends to find its way to the market first, and the prices rise dramatically with demand and reduced availability. Prices have been all over for this material. Specimens at many high end dealers are still priced in the thousands of dollars. Specimens tend to be more affordable in the USA compared to what we have seen internationally. We hope you like these specimens as much as we do!

Grape Agate

Tiny spheres of purple quartz with a botryoidal habit.
Article by: Hobart M. King, Ph.D., RPG
https://geology.com/minerals/grape-agate/

 

What Is Grape Agate?

Grape agate is a marketing name for purple aggregates of tiny quartz crystals with a spherical (botryoidal) habit. The name reflects their purple color and how they occur in clusters that resemble bunches of grapes. This material is found in the Mamuju area, near the western coast of Sulawesi, an island of Indonesia. Grape agate entered the mineral market in 2016. Its popularity quickly spread through mineral shows, rock shops, websites, and online marketplaces. Specimens with a fun appearance and an interesting name like grape agate market themselves. The "grapes" of these specimens are tiny. They range between about two and eight millimeters across. Although purple is the best color to match the "grape" name, some specimens have grapes that are white, gray, green, or blue.

Grape, Yes. Agate, Maybe Not.

The name "grape agate" has stuck as a marketing term. However, the name is a misnomer. Misnomers are names that are scientifically incorrect. There are no arguments with "grape" because of its purple color. But, the use of "agate" as a species/variety name draws objections. Here is an analysis...

Grape Agate: This name is inappropriate because agate should have parallel internal banding. The name agate also implies quartz with a microcrystalline texture; however, most of the grapes have a drusy surface - making them megascopically crystalline.

Grape Chalcedony: Like agate, the name chalcedony implies quartz with a microcrystalline texture. Grape Quartz: The name quartz fits better than both agate and chalcedony. But, the appropriate name for purple quartz is amethyst.

Botryoidal Amethyst: The name "amethyst" better honors mineralogical and gemological definitions, and the adjective "botryoidal" communicates a rounded shape. So, this author concludes that the name "botryoidal amethyst" is a name that is scientifically correct, but is not as much fun as "grape agate".

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Grape_Agate_1_1_2 Grape_Agate_1_6_2 Grape_Agate_1_8_2 Grape_Agate_1_5_2
Item # 1GABA08202054

Grape Agate/Botryoidal Amethyst from Indonesia

$135.00

Here's a special formation of botryoidal amethyst that forms a combination of fine brilliant purple radial aggregate "balls" that resemble a bunch of grapes in a purple to lavender color with associated moss-grey-green Celadonite influence on the reverse side. These grapes that have a stunning three-dimensional form and enticingly sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia from the 2020 Franklin, North Carolina Show

specimen weighs 1.86 oz (53g) and measures 3.5 x 1.2 x 1 inches (9 x 3.2 x 2.7cm) grape balls up to 7.3mm diameter

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Item # 2GABA08203134

Grape Agate/Botryoidal Amethyst from Indonesia

$129.00

Here's a special formation of botryoidal agate that forms a combination of fine brilliant purple radial aggregates "balls" that resemble a bunch of grapes in a purple to lavender color that has a stunning three-dimensional form and sparkling luster with rare additional quartz crystals. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia from the 2020 Franklin, North Carolina Show

specimen weighs 3.66 oz or 0.23 lb. (104g) and measures 3.5 x 2.5 x 1.9 inches (9 x 6.5 x 4.9cm) grape balls up to 5.4mm diameter

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Item # 3GABA08201003S94

Grape Agate/Botryoidal Amethyst from Indonesia

Sold

Here's a special formation of botryoidal agate that forms a combination of fine brilliant purple radial aggregates "balls" that resemble a bunch of grapes in a purple to lavender color that has a stunning three-dimensional form and sparkling luster with rare additional quartz crystals. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia from the 2020 Franklin, North Carolina Show

specimen weighs 3.56 oz or 0.22 lb. (101g) and measures 2.7 x 2.1 x 1.6 inches (7 x 5.5 x 4.1cm) grape balls up to 6.1mm diameter

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Item # 4BC08201111

Botryoidal Agate/Celadonite from Indonesia

$65.00

Sold

Here's a special formation of botryoidal agate/celadonite that forms a moss green radial aggregate "balls" that resemble a bunch of grapes in a green color that has a stunning three-dimensional form and enticingly sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia from the 2020 Franklin, North Carolina Show

specimen weighs 1.74 oz (49.5g) and measures 3.3 x 1.3 x 0.81 inches (8.5 x 3.5 x 2cm) balls up to 4.6mm diameter

Grape_Agate_6_3_2
Grape_Agate_6_3_2
Item # 5GABA08202071

Grape Agate/Botryoidal Amethyst from Indonesia

$59.00

Sold

Here's a special formation of botryoidal agate that forms a combination of fine brilliant purple radial aggregates "balls" thatresemble a bunch of grapes in a purple to lavender color that has a stunning three-dimensional form and sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia from the 2020 Franklin, North Carolina Show

specimen weighs 0.52 oz (15g) and measures 1.75 x 1 x 0.66 inches (44.7 x 27.7 x 16.8mm) grape balls up to 6.5mm diameter

Grape Agate Sphere 8 (4)
Grape Agate Sphere 8 (7)
Grape Agate Sphere 8 (9)
Grape Agate Sphere 8 (2)
Grape Agate Sphere 8 (4) Grape Agate Sphere 8 (7) Grape Agate Sphere 8 (9) Grape Agate Sphere 8 (2)
Item # 8GABS09213747

Grape Agate Botryoidal Sphere from Indonesia

$149.00

Here's a special 74.6mm Sphere made from botryoidal agate that forms a combination of fine brilliant purple radial aggregates "balls" that resemble a bunch of grapes in a purple to lavender color that has a stunning three-dimensional form and sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia.

Sphere weighs 12.9 oz or 0.81 lb (367g) and measures 2.93 inches (74.6 mm) diameter

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Item # 43GCA07190051S49

Grape Chalcedony Agate from Indonesia

Sold

Here's a special formation of botryoidal agate that forms a combination of fine brilliant purple radial aggregates "balls" that resemble a bunch of grapes in a purple to lavender color that has a stunning three-dimensional form and enticingly sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia from the July 2019 Franklin, North Carolina Show

specimen weighs 0.98 oz (28g) and measures 2.7 x 1.5 x 0.75 inches (69 x 38 x 19mm)

Grape Agate Sphere 9 (1)
Grape Agate Sphere 9 (3)
Grape Agate Sphere 9 (4)
Grape Agate Sphere 9 (5)
Grape Agate Sphere 9 (1) Grape Agate Sphere 9 (3) Grape Agate Sphere 9 (4) Grape Agate Sphere 9 (5)
Item # 9GABS09214084

Grape Agate Botryoidal Sphere from Indonesia

$185.00

Here's an exceptional 61.4mm Sphere made from botryoidal agate that forms a combination of fine brilliant purple radial aggregates "balls" that resemble a bunch of grapes in a purple to lavender color that has a stunning three-dimensional form and sparkling luster. When viewed through Opti-Visors or magnification, each individual "ball" has finite crystallized drusy-like surfaces. New specimen from Sulawesi, Indonesia.

Sphere weighs 8.2 oz or 0.51 lb (232g) and measures 2.41 inches (61.4 mm) diameter