Portland and Braintree Supply Stores are open for curbside pick up. Please place your order at least a day ahead of time.

We thank our customers for being so patient during this time. We are getting orders ready as quickly as possible. After you have placed an order, please wait for a call or email back from us confirming your order is ready before coming to pick it up.

Contact info and hours for all locations

Prices are subject to change. Please contact us to get the most up to date pricing.
Cornwallstone Sub$5.58$3.74$2.36$1.63$0.75$0.68$0.66$0.61
Custer Feldspar (potash)$3.30$2.22$1.41$0.98$0.47$0.43$0.41$0.39
Laguna Potash Feldspar 200 mesh$0.98$0.75$0.69$0.64$0.39$0.38$0.37$0.36
Mahavir Potash Feldspar 55lb bags$1.07$0.81$0.74$0.67$0.39$0.38$0.36$0.36
Minspar 200 Soda Felspar$2.26$1.53$0.98$0.68$0.33$0.30$0.30$0.28
Nephsy 270$2.70$1.82$1.15$0.80$0.38$0.35$0.34$0.31
Nephsy 400$3.12$2.10$1.33$0.93$0.44$0.40$0.39$0.37
Potassium Carb(Pearl Ash)$6.41$4.82$4.42$4.02$2.34$2.27$2.19$2.14
Spodumene - new bags 50lbs$5.12$3.86$3.54$3.23$1.90$1.83$1.77$1.73