Volkonskoite Pigment
Volkonskoite is a chromium-bearing mineral found in clay-bearing sandstones. We get our deep forest green pigment from mineral sources near the village of Efimiata in the Perm Basin, Russia. Learn more.
Volkonskoite is a chromium-bearing mineral that is part of the smectite group, a clay mineral found in sandstones, conglomerates, and red beds, commonly filling voids from the decomposition of organic material. The largest deposit of volkonskoite is found in Mt. Efimiatsk and elsewhere in the Okhansk region, Middle Kama River area, Perm Basin, Ural Mountains, Russia. We get our pigment from mineral sources near the village of Efimiata in the Perm Basin. Its masstone varies from olive green to bright emerald green. Ours is a deep forest green edging towards an olive green. Usually, the mineral is free from impurities and is ready for use as a pigment without much preparation.
| Pigment Names | |||||||
| Common Names (mineral): | English: volkonskoite French: volkonskoïte German: Volkonskoit Italian: volkonskoite Spanish: volkonskoita | ||||||
| Synonyms: | English: Wolchonskoite French: German: Italian: | ||||||
| Nomenclature: |
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| Pigment Information | |
| Color: | Green |
| Pigment Classification: | Natural Inorganic |
| Colour Index: | Not Listed |
| Chemical Name: | Hydrated Calcium Chromium Magnesium Iron Silicate Hydroxide |
| Chemical Formula: | Ca0,3(Cr+3,Mg,Fe+3)2(Si,Al)4O10(OH)2*4H2O |
| CAS No.: | 1318-00-9 |
| Series No.: | 7 |
| ASTM Lightfastness | |
| Acrylic: | Not Listed |
| Oil: | Not Listed |
| Watercolor: | Not Listed |
| Physical Properties | |
| Particle Size (mean): | 12 microns |
| Density: | 2.11–2.36 g/cm3 |
| Hardness: | 1.5–2.0 |
| Refractive Index: | 1.551–1.569 |
| Oil Absorption: | 32 grams oil / 100 grams pigment |
| Health and Safety | There are no acute or known chronic health hazards associated with the anticipated use of this product (most chemicals are not fully tested for chronic toxicity). Always protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhalation of spraying mists, sanding dusts and vapors from heating. Conforms to ASTM D-4236. |
For a detailed explanation of the terms in the table above, please visit Composition and Permanence.
Origin and History
There is little known about the use of this pigment in ancient art. There is some evidence of a green chromium oxide pigment in some European works from the Renaissance. Pablo Picasso especially liked this pigment, which he imported from the former Soviet Union.
The pigment was named for Prince A. Volkonskoi, Minister of the Imperial Court, Russia, in the 19th century.
Source
We obtain our deep forest green pigment from mineral sources near the village of Efimiata in the Perm Basin, Russia.
Permanence and Compatibility
Volkonskoite is considered to be a permanent pigment. It is unaffected by exposure to light. There are no known incompatibilities with other pigments and paint binders.
Oil Absorption and Grinding
No data has been published on the oil absorption properties of volkonskoite. A unique characteristic of the mineral volkonskoite is its high adhesive property, which complicates pulverizing it for use as a pigment. One method to eliminate this difficulty is to add a small amount of quartz to volkonskoite while grinding or mulling the mineral. The addition of quartz does not detract from its qualities as one of best green pigments to use in glazes.
Toxicity
Volkonskoite is not considered toxic but care should be used in handling the dry powder pigment so as not to inhale the dust.
For more information on how to handle pigments safely, please visit How to Safely Handle Art Materials and Pigments.
| SKU | 420-25 |
|---|---|
| Brand | Rublev Colours |
| Vendor | Rublev Colours |
| Processing Time | Usually ships the next business day. |
| Color | Green |
| Pigment Type | Inorganic, Historical, Natural |
Order Processing
If the Processing Time for items in your order is "Usually ships within 24-48 hours", your order will usually be processed within 48 hours of receipt Monday through Friday. Orders received during weekends and holidays will be processed on the next business (working) day. Orders with longer processing times will be shipped when all items become available.
Shipping Rates
Please add your desired items and the delivery address to your basket to determine the exact shipping costs and options. The table below provides shipping rates for different weights to the countries we ship to.
Carriers
We use the following carriers to deliver orders:
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Below is an approximate guide to shipping costs for locations in Europe. Rates may change without notice.
| COUNTRY | ALPHA-2 | RATES PER PARCELS | CARRIER | |
| 0–10 kg | >10 kg–30 kg | |||
| Austria | AT | 11,50 € | 11,50 € | DPD |
| Belgium | BE | 10,95 € | 10,95 € | DPD |
| Bulgaria | BG | 20,25 € | 30,25 € | FedEx |
| Bosnia and Herzegovina | BA | 49,25 € | 49,25 € | DPD |
| Cyprus | CY | 21,80 € | 29,30 € | FedEx |
| Switzerland | CH | 25,85 € | 42,98 € | FedEx |
| Czech Republic | CZ | 12,00 € | 12,00 € | DPD |
| Germany | DE | 5,50 € | 5,50 € | DPD |
| Denmark | DK | 12,00 € | 12,00 € | DPD |
| Spain | ES | 17,48 € | 28,50 € | FedEx |
| Estonia | EE | 21,70 € | 21,70 € | DPD |
| Finland | FI | 17,48 € | 28,50 € | FedEx |
| France | FR | 14,60 € | 14,60 € | DPD |
| United Kingdom | GB | – € | – € | – |
| Greece | GR | 17,48 € | 28,50 € | FedEx |
| Croatia | HR | 29,25 € | 29,25 € | DPD |
| Hungary | HU | 15,90 € | 15,90 € | DPD |
| Ireland | IE | 17,48 € | 28,50 € | FedEx |
| Iceland | IS | 30,70 € | 62,40 € | DHL |
| Italy | IT | 15,90 € | 15,90 € | DPD |
| Liechtenstein | LI | 25,85 € | 43,00 € | FedEx |
| Lithuania | LT | 21,70 € | 21,70 € | DPD |
| Luxembourg | LU | 10,95 € | 10,95 € | DPD |
| Latvia | LV | 21,70 € | 21,70 € | DPD |
| Malta | MT | 21,80 € | 30,25 € | FedEx |
| Monaco | MC | 15,95 € | 24,30 € | FedEx |
| Netherlands | NL | 10,95 € | 10,95 € | DPD |
| Norway | NO | 25,85 € | 43,00 € | FedEx |
| Poland | PL | 14,90 € | 14,90 € | DPD |
| Portugal | PT | 15,50 € | 15,50 € | DPD |
| Romania | RO | 21,80 € | 30,25 € | FedEx |
| Serbia | RS | 49,25 € | 49,25 € | DPD |
| Slovakia | SK | 15,90 € | 15,90 € | DPD |
| Slovenia | SI | 15,90 € | 15,90 € | DPD |
| Sweden | SE | 15,90 € | 15,90 € | DPD |
| Turkey | TR | 27,30 € | 46,20 € | FedEx |
Note: Countries in RED type are not members of the European Union.
Postal Service
Shipping (EU and non-EU countries):
Up to 500 grams Tracked: 6,85 €
Up to 1000 grams Tracked: 10,45 €
Up to 2000 grams Tracked: 20,50 €
Tracking
For tracking details, please log in to your Natural Pigments account.
We track all orders where a tracked delivery service has been selected.
We will update your order with the tracking information if the shipping carrier provides a tracking number. You can locate the tracking number for your order in the shipping confirmation email you receive when your order is shipped. (Look for the email with the subject line "Natural Pigments: Shipment # xxxxxxxxx for Order # xxxxxxxxx.") You can also find the tracking number by signing into your account and visiting My Account Dashboard under Recent Orders.
VAT for Orders within the European Union
VAT is not included in prices unless specified on the website as VAT INCLUSIVE. VAT is calculated for Germany at 19% on both order subtotal and shipping cost and is added to the order grand total.
VAT, Duties, and Tariffs for Orders Outside of the European Union
VAT is not included in prices and totals unless specified on the website as VAT INCLUSIVE. Duties, tariffs, and customs broker fees are not included in the prices and totals on the website. These charges are in addition to what you will pay when ordering. These charges originate in the delivery country, so please contact your local customs for more information.
Shipping Rates
The rate charged for the shipping of your order is based on the weight of your products and your location. Before the final checkout page, you will be shown what the shipping cost will be, and you will have a chance to abandon your order if you decide not to place it.
Shipping Damage
For shipping damage, customers should file a claim with the carrier immediately. Any discrepancy, including wrong or missing items, should be reported to Natural Pigments within twenty-four (24) hours of receipt.
Back Orders
We do not accept backorders for out-of-stock items. If you order an out-of-stock item, we will email you when we expect that product to be available. You will be among the first to receive the item when it becomes available. Natural Pigments will not charge your credit card for out-of-stock items.
