Glauconite Greensand Pigment
Glauconite, or greensand, is a green earth color from marine sedimentary deposits containing iron silicates, powdered for pigments and filters. It is included in HTS 2530.90.8015 as other earth colors not meeting synthetic or high-purity exclusions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold primarily as water softening filter medium
End use as industrial filter determines kieselguhr/siliceous earth heading.
If refined to high iron silicate oxide purity
Processed forms exceeding purity notes go to other inorganic chemicals.
If containing micaceous iron oxides
Heading 2530 specifically lists micaceous iron oxides under separate subheading.
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Import Tips & Compliance
• Distinguish pigment grade from water filtration grade via end-use declarations
• Lab reports on silicate/iron content prevent reclass to Chapter 28
• Ship in loose bulk to affirm mineral substance status
Related Products under HTS 2530.90.80.15
Yellow Ocher Pigment
Natural yellow ocher is a fine powdered earth color derived from iron oxide-rich clay deposits, used primarily as a pigment in paints and coatings. It falls under HTS 2530.90.8015 as an unprocessed earth color containing less than 70% combined iron evaluated as Fe2O3, distinguishing it from higher-purity oxides in heading 2821.
Raw Sienna Earth Pigment
Raw sienna is a naturally occurring yellowish-brown earth color mined from iron oxide deposits, supplied as powder for artist paints and historical restorations. Classified in HTS 2530.90.8015 as other earth colors not exceeding the iron purity exclusion for Chapter 28.
Natural Umber Powder
Umber is a dark brown earth color from manganese and iron oxide clays, ground into powder for use in oil paints and stains. It qualifies for HTS 2530.90.8015 as a mineral earth color below the Chapter 28 iron exclusion limit.
Terracotta Earth Color
Terracotta earth is a reddish-orange natural clay pigment extracted from iron-rich soils, used in ceramics glazes and traditional plasters. HTS 2530.90.8015 applies to this unrefined earth color outside Chapter 28 purity exclusions.
Raw Bole Armenian Pigment
Bole Armenian is a soft red clay earth color rich in iron oxide and silica, traditionally used as a pigment base and in medicines. Classified under HTS 2530.90.8015 for natural earth colors below chemical purity thresholds.
Cretaceous Chalk Earth Color
Cretaceous chalk is a white earth pigment from fossilized marine deposits, low in iron, used in putties and fine art grounds. HTS 2530.90.8015 covers this as an other earth color outside excluded categories.