Mountain Rose Herbs

French Green Clay

French Green Clay





Quarry mined and processed rock and mineral content

Suggested use

External use only

Shelf life

Indefinite (4-5 years recommended)


The line of French Green clay offered by Mountain Rose Herbs is quarry mined from naturally occurring deposits and is untreated, with a beautiful light green color and soft texture.

Typical analysis

Color- Light green with soft gray hue
Odor- Flat
Mesh Size- US #80 Mesh

Typical Mineral Content
Silica- 50.6%
Aluminum- 14.1%
Magnesium- 2.25%
Calcium- 9.2%
Iron- 4.8%
Titanium- .71%
Phosphorus- .12%
Sodium- .18%
Potassium- 4.2%

What is it?

French Green Clay also sometimes traded as Sea Clay is by far one of the most majestic, most effective, and most commonly used mineral skin clays found throughout our global community. French Green Clay (AKA Illite Clay or Sea Clay) contains a cornucopia of valuable elements, which include montmorillonite, several (up to 9) important mineral oxides, magnesium, calcium, potassium, dolomite, silica, manganese, phosporous, silicon, copper, and selenium. Green clay owes its coloration to 2 very important factors, which ultimately decide a good quality clay from a poor quality clay. They are, iron oxides, and decomposed plant matter…..Yes, that is correct, decomposed plant matter. The natural green tones found in this luxurious clay are from the very cycles of life this earth uses to regenerate itself. When purchasing French Green Clay it is of utmost importance that it is truly green, or off green in color. French Green Clay cannot be white or gray in color ever.

How does it work?

Unlike other clays where key elements work in symbiosis off of each other, French Green contains several elements which act as their own “body”. In French Green Clay, each element is responsible for working the outer epidermis (skin) in its own way and in dispensing their biological constituents as best as possible.

Where does it come from?

Well contrary to popular belief, not all French Green Clay comes from France. While Mountain Rose Herbs stocks a beautiful imported clay from France, we have seen several French Green varieties from Wyoming, Montana, China and some European countries.
Here’s what happened…
At one time the French Quarries controlled the production for the little market they knew as “Green Clay”, and enjoyed this unhampered success. Because this was going on for so long, the world’s market decided to coin the term “French Green Clay” because all of the green colored facial clays were coming from this country. After a surge in worldwide popularity and booming financial prospects, several other quarries realized they had deposits very similar to that of some of the major French exporters
So, needless to say many other players have come onto the field for a little bit of the French Green action, and regardless of where it comes from, it appears as if the world will still refer to it as “French” Green Clay.

How is it manufactured?

French Green Clay is quarry mined from deposits that can range anywhere from 100 feet to several thousand feet. This depends on the health and vitality of the land it is on and how far a producer will have to go to find the right clay with the right color and consistency. From here it is mined and brought out into the sun to remove excess water and moisture and to make it easier to work with. Now begins the final transformation…it gets heavily processed (ground) with huge hydraulic crushers and then micronized (finely pulverized) with more micromanaged, fine mesh equipment. After it is processed, it is laid out in the sun one more time to dry in hopes of removing the final amounts of moisture.