Macphersonite, Pb4(SO4)(CO3)2 (OH)2, is a carbonate mineral that is trimorphous with leadhillite and susannite.

Macphersonite is named after Harry Gordon Macpherson,[4] a keeper of minerals at the Royal Scottish Museum.

Stacking of the three layers can be detailed as ...BABCCBABCC...[5] similar to leadhillite.

Macphersonite is soft with a 2.5-3 on the Mohs hardness, has an uneven fracture with a high density of 6.5g/cm3.

It occurs in lead deposits associated with cerussite, susannite, caledonite, scotlandite, leadhillite, galena and pyromorphite.