Mistaken Identity: Request for Quotation on Pumice Powder

A while ago, I wrote an article on pumice on south Mediterranean coast: a remnant of the Thera eruption? This is mainly from observations from my childhood days being intrigued by the pumice embedded in the sand stone.

After I posted it, I got a few emails offering or requesting pumice as a commercial supplier.

Here is one that is a Request for Quotation (RFQ) for

Subject: RFQ-Pumice powder
From: sanjivragit@example.com
Date: Mon, 10 Nov 2008 07:40:36 +0000 (UTC)
MATERIAL: PUMICE
Product Form: Powder
Chemical Composition/Analysis Sieve Analysis
TYPE MINIMUM MAXIMUM BS MESH MM RCU%
SiO2 50.0% 60.0% +52 0.300 0%
Al2O3 20.0% 24.0% -52 0.300 100% as follows
TiO2 -- 2.0% 72 0.212 0-3
Fe2O3 1.0% 4.0% 100 0.150 --
CaO -- 2.5% 150 0.106 0-10
MgO -- 2.0% 200 0.075 --
Na2O 6.0% 9.0% 240 0.063 10-25
K2O 4.0% 6.0% 350 0.045 --
MnO -- 1.5% 400 0.037 30-50
S -- 0.030%
P -- 0.040%
Ignition loss at 1000°C -- 6.0%
H2O at 1000°C -- 5.5%
Physical Properties: Color – WhiteBulk Density – 0.5-0.6 g/cm3
Certificates & Reports: Each lot supplied shall be accompanied by test
certificate giving actual chemical analysis & mesh size.
Remarks: 1. Lot to lot consistency for grain size distribution should be
maintained.
Packing:
Package Marking: Each Bag / Drum should have the following
marking:1.Party’s Name.2.Material Name.3.Quantity.