Gielinor's Ledger
Calcite

Calcite

A large crystal of calcium carbonate.

MembersBuy limit 13,000Stackable
Insta-buy

140gp

Insta-sell

110gp

Spread

30gp

27.27%
Margin

+28gp

+25.45% ROI
Volume

—

Trend

—

Price history

1 points · hover for detail

Insta-buy (high)Insta-sell (low)Spread

Volume · units traded

30D low
110
30D high
140
Volatility
24.0%

Flip calculator

Includes the 2% Grand Exchange tax

gp
gp
units
Net profitProfitable

+28gp

+28 per item · +25.45% ROI

Capital required
110 gp
Gross revenue
140 gp
GE tax (2%, 2/item)
− 2 gp
Break-even sell
112 gp

Item data

High alchemy
18 gp87.1% below market
Low alchemy
12 gp
Shop value
30 gp
Weight
0 kg
Stack / note
Stackable · not noteable
Released
Sep 7, 2017

About Calcite

The Calcite is a members-only item in Old School RuneScape.

"A large crystal of calcium carbonate"

Over the last 30 days it traded between 84 and 123 gp on the Grand Exchange, averaging 113 gp. About 9,198 units changed hands per day. The price is down 25.0% across that window. The Grand Exchange buy limit is 13,000 every 4 hours. Selling one at the average price costs 2 gp in Grand Exchange tax.

Casting High Level Alchemy returns 18 gp, which is 84.1% below the 30-day average price, so alching a bought one loses money.

How to get Calcite

6 monsters drop Calcite, most commonly Ancient Zygomite (18/118), Boulder (Volcanic Mine) (1/20) and Long-tailed Wyvern (2/123). Only Petrified Pete's Ore Shop sells it.

Dropped by

MonsterRarityQuantity
Ancient Zygomite18/1181
Boulder (Volcanic Mine)1/201–4
Long-tailed Wyvern2/1232
Spitting Wyvern2/1232
Taloned Wyvern2/1232
Ammonite Crab1/1281

Sold in shops

ShopPriceStock
Petrified Pete's Ore Shop70 Volcanic Mine points∞

Calcite price history

Daily averages rolled up per month, newest first.

Monthly average, low and high price of Calcite on the Grand Exchange
MonthAverageLowHighVolume
October 202612d11284123110,249
September 202611398124211,451
August 202611198122182,198
July 202611296125239,645
June 202621d112106122133,773
May 20262d11510512532,999
April 20261d1151151152,797
March 20269484125107,477
February 20261078314622,691
January 20261076814817,856

Across 10 months of recorded prices Calcite ranged from 68 gp in January 2026 to 148 gp in January 2026, measured over 218 trading days.

The 30-day average of 113 gp sits around the middle of that range.

All prices in gp. Volume counts units traded across both sides of the Grand Exchange.