Cacti are succulents, but not all succulents are Cacti.
Hywel is the best person to id this for you.

Cacti tend to have spines or hairs or so I was told. Based on that I'd say that was a succulent.

Thankyou Owdboggy and Seaburngirl I do appreciate your help

It looks like a Faucaria which have these jaw-like leaves, maybe Faucaria tuberculosa.

Thankyou Wylienthea

I am on my way to read up about this plant in my Gardening books

As Wylie said it's Faucaria

Cacti have swollen stems and spines that arise from points called areoles, which are usually tufty.
In this one you can see it has swollen leaves so it's not a cactus.

Cactus is singular. Cacti is plural.