Terre Verte Hue

Pigment History: Perhaps the most well known use of Terre Verte, or green earth, has been the under painting of flesh in medieval painting. The tradition of employing greenish mixtures in rendering flesh is recorded in texts from as early as the 11th century. Intentionally creating a weak and neutral green isn’t easy with today’s base primary colors. GOLDEN blends Chromium Oxide Green, Yellow Oxide and a touch of Phthalo Green Yellow Shade, then reduces the brightness with Carbon Black, Zinc White and Raw Umber. The opacity is then adjusted with large amounts of gel medium to match all of the properties of green earth.
Pigment Classification: Mixture
Chemical Description: Anhydrous Chromium Sesquioxide / Carbonized Bones / Calcined Natural Iron Oxide containing Manganese / Brominated and Clorinated Copper Phthalocyanine / Synthetic Hydrated
Iron Oxide
Opacity/Transparency: 5
Lightfastness Rating: I
Permanency: Excellent
Colour Index Name: PG 17 / PBk 9 / PBr 7 / PG 36 / PY42
Colour Index Number: 77288 / 77267 / 77492 / 74265 / 77492
Munsell Notation Listing:
Hue: 7.2 GY
Value: 3.50
Chroma: 2.1
Spectrophotometer Readings: N/A
Viscosity Range: 20000-25000 CPS
PH Range: 8.70-9.0
Gloss Average: 12.96
CIE L*a*b* Values: L*35.35 a*-6.65 b*7.60
Tint Strength: 91.29

The Lightfastness Ratings included in this chart are provided by the American Society for Testing and Materials (ASTM) in the standard for “Artists’ Acrylic Emulsion Paints”. (ASTM D 5098, Annual Book of Standards, Volume 6.02). Colors with a Lightfastness Rating of I are considered Excellent (“Exc.”) and those with a Lightfastness Rating of II are Very Good (“V.G.”). Where Lightfastness Ratings have not been obtained according to ASTM test protocol, “NA” is indicated in the table. In these cases, data from pigment manufacturers and our own test facilities have been used and an appropriate description assigned under Permanency.

**The identified colors are sensitive to a combination of moisture and UV radiation and are not recommended for outdoor use.

For Opacity/Transparency, we have determined that an eight-point scale is most appropriate for describing the properties of our colors. We have assigned each color in the chart a number from 1 (most opaque) to 8 (most transparent) to indicate the relative opacity/transparency of that color.

The C.I. (Colour Index) Name is an internationally recognized code assigned to a particular “colorant.” The C.I. Name consists of the category (type of dye or pigment), general hue and serial number assigned, based on its chemical constitution. For example, PB 60, Anthraquinone Blue, indicates a specific Pigment Blue. The C.I. Number is a five-digit reference number assigned in the Colour Index based on the chemical structure of a colorant, regardless of usage class.

Notes:
1) The Golden C.P. designation indicates concentrated cadmium pigments (CC).

2) Information about Iridescent and Interference products apply for both Fine and Coarse grades.